Colt ar-15 serial numbers

The first few Colt serial numbers (001-100) were toolroom prototypes and mules, and numbers were reused, and some were built on unnumbered receivers. Most of these were destroyed. The first ~15,000 guns were, as the memo notes, marked as “Armalite AR-15” and these weapons went to the USAF for Security Police use and for testing by the ...

Colt 6920 M4 AR-15 Serial Number Data Base / Info. I recently acquired a Colt M4 AR-15 and would like to know the approximate year of manufacture. I tried the serial number look up on the Colt website but no joy. It is an LE model without any words that say "restricted". The serial number is LE5036XX.Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Warning . ... Colt Sporter Target with a GS serial number? ARCHIVED; Posted: 12/22/2006 5:58:11 PM EDT ... So i was looking and the gun is a 6551 but it has a 6550 serial number on it. So im just really trying to figure out which ...The Colt AR-15A2 Sporter II rifles was made from 1984 to around 1989 and should have small mil-spec size 0.154" hammer and trigger pins. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 Government Model Series 80 .45 pistol owner since 1984 ... Serial numbers SP360200 and below are pre-ban.Enter the serial number, without spaces or dashes, to search the database. If multiple models appear for your serial number simply match the date with the appropriate model, as certain vintage firearms can share serial numbers between different models.Enter the serial number, without spaces or dashes, to search the database. If multiple models appear for your serial number simply match the date with the appropriate model, as certain vintage firearms can share serial numbers between different models. If your firearm does not appear in the listing, please understand that this is not a ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. ... when would an AR with a serial number of "ST 002903", have been made? Colt Sporter Target Model Posted: 10/2/2012 5:34:38 PM EDT [#1] Quoted: I'm trying to figure out the year of manufacture on a Colt AR. Based on THIS page ...

Model: AR-15 A2 GOV'T CARBINE Serial Number Prefix: LGC (Law Enforcement Government Carbine) Caliber: 5.56 NATO/ .223 Rem. ... on trade as part of a PA State Police program where these AR-15 A2 rifles were traded in on a newer version of the Colt AR-15/M4 for department use. Although it has been in service since probably the late 1990's or ...Colt AR15 Serial Number under 010 - Some have No logo - Tool Room Guns with distinctive tool marks on receiver. There are at least 3 guns serial number #0004 attributed to Colt. Not to be confused with Armalite SN: 0004. Colt AR15 Model 01 - SN: 000,1xx: Usually has green painted bakelite furniture. Through.Kenworth semi trucks manufactured after 1981 have a unique, 17-character VIN (vehicle identification number) used to identify it specifically for all legal purposes. The VIN, when ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.There are two distinct mil-spec pistol grips used on AR-15 & M16 series rifles; the first one, used with the original AR-15 and all variants through the M16A1, is relatively smooth and has light checkering on the sides as well as a hole in the bottom-front of the grip that acts as a sling swivel mounting point (though was rarely if ever used in ...

The highest serial number known to be in the wild is GS 0092xx. GC (Government Carbine)-- 18,500 Colt Model 6520 AR-15A2 Government Model Carbine (1988-) ... Colt Model 6010 AR-15 Sporter (SP1 in .222 REM for countries that ban mil. calibers) Colt Model 6500 AR-15A2 Sporter II (1984 - )If you need to know what year the rifle was made from the serial number just call Colt at 1-800-962-COLT (2658), they would provide the info for your rifle. The GS series model R6550 AR-15A2 Government Model was an all pre ban model and production was started in around 1988 and ended in about 1990. I did not have that particular model but I had ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.Colt actually has serial number cutoffs, these are the last Pre-ban numbers in each series: CC001616, NL004800, TA10100, CHOI 9500, SL027284, BD000134, GCOI 8500, SP380200, LH011326, ST038100, MH086025 ... [ARCHIVED THREAD] - Serial Number Lookup on Colt AR-15- Need date of manufacture. ARCHIVED; AR-15 » AR …

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During the mid-1950's the serial number data is so mixed as to be almost incomprehensible. As example you may have a model of revolver made in .22 and in .38 Special, with the .22 revolver serial numbers mixed with a different model Colt, and the .38 caliber version of that model in yet a different model range. Even after Colt began using ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. ... . It is a compilation of both personal information and information submitted from others from the Internet. ALL SERIAL NUMBERS SHOULD BE VERIFIED FROM THE MANUFACTURER PRIOR TO ANY …Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.AR 15 serial numbers. Jump to Latest Follow ... If further information is needed, contact Colt Archive Services. Colt's Manufacturing Company LLC 545 New Park Avenue West Hartford, CT 06110 USA Tel: (860) 236-6311 Fax: (860) 244-1442 . "There will be a revolution in this country!"Jul 9, 2023 · The Colt AR-15 A2 Sporter 2 Serial Numbers is a popular topic among gun enthusiasts and collectors alike. This rifle, produced by the legendary American gun manufacturer Colt, has been in production since the late 1950s and has undergone many changes and improvements over the years.

Colt serial number, looking for Year made? M16A1 91338XX Thanks Ron Posted: 11/30/2018 10:50:01 PM EDT [#1] From info tacked in the Retro forum: 9,000,000 series ... AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry.Find information about Trane serial numbers at Trane.com. Click the Go to Trane Residential link under the Residential heading on the home page. Next, click the Warranty & Registra...The differences with the 6920 variants are just markings, Colt's Law Enforcement Carbine, Sporter M4 Carbine, M4 Carbine, and M4A1 Carbine, are all the same high quality as before, all the desirable mil-spec features are there. Note that M4 Carbine marked 6920 have two types of serial number prefix, the SP and the LE, the SP prefix usually also ...Colt Model 1855 Side Hammer "Root" Pocket Revolver. Colt Models 1 and 1A Serial #1-384. Colt Model 2 Serial #476-25000. Colt Model 3 Serial #25001-30000. Colt Model 3A and 4 Serial #1-2400. Colt Model 5 Serial #2401-8000. Colt Model 5A Serial #2401-8000. Colt Model 6 and 6A Serial #8001-11074.Colt AR15 Serial Number under 010 - Some have No logo - Tool Room Guns with distinctive tool marks on receiver. There are at least 3 guns serial number #0004 attributed to Colt. Not to be confused with Armalite SN: 0004. Colt AR15 Model 01 - SN: 000,1xx: Usually has green painted bakelite furniture. Through.Here's how we made those cool AR models. We’ve heard it all before—some new, groundbreaking technology is going to change the way we live and work. In fact, we’ve heard these claim...AR 15 serial numbers. Jump to Latest Follow ... Could someone direct me to a listing of Colt AR 15 serial numbers and their year of manufacture? Or, when was ST ...From the Magazine FAQ: [2-2-1-1] Early Colt 30-round Mags. Army and late Air Force contract mags. The first Colt 30-round mags had dark green, hard-plastic followers with Colt part number 62665A stamped in white on the follower and part number 62667 stamped on the side of the body. These followers did *not* have the lengthened front "anti-tilt ...Hello, I would like to know more about the new Colt AR-15 I just purchased. I found some basic info such as GC=Government Carbine but would like to know the original build configuration and date of the rifle. It is a Colt AR-15 A2/M4 6520 w/A3 upper, 14.5" 1/9 barrel, 2" FH, pistol grip, 2-position telescoping buttstock, bayo-lug. WouldI'm interested in buying a Colt Ar15-A3 Tactical Carbine model# 6721. The serial number in that list are explained as follows: BD AR15A3 Tactical Carbine 6721. BD000134 and Below (AR-15A3 Tactical Carbine - very rare model) The one I'm looking at buying has a serial number in the B001XXX range. I haven't had much luck contacting colt yet about ...

VERY rare Colt orig Green label R6550 government service model serial GS007xxx. These GS serials where not meant to be civilianised or sold to the public. There is not a true number of how many of these actually got out there to civilians. This has less than 80 rounds fired total. Colt AR-15 A2 Government model.

Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.It ain't. It's JAFAR / 6920. If your lower is not rolled marked "LAW ENFORCEMENT" it is not now, never has been, and never will be a "LAW ENFORCEMENT" model. ETA: And a LE roll marked 6920 lower is just another 6920 lower with a "LAW ENFORCEMENT" roll mark on it brought about by the ban years and later Colt marketing.I've only seen two of these "Colt AR-15 Target Model" rifles with the LST serial prefix. Both had low serial numbers and both were marked with the "Restricted Military/Government/Law Enforcement/Export Use Only" roll marking. No bayonet lug and has the screw style front pivot pin. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 ...Or, if you have a comprehensive list of the old Colt SP1 manufacture dates per serial number..... Posted: 6/8/2011 5:44:04 PM EDT [#1] Call Colt Customer Service 800-962-2658. Posted: 6/8/2011 5:44:07 PM EDT ... AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry.Here's how we made those cool AR models. We’ve heard it all before—some new, groundbreaking technology is going to change the way we live and work. In fact, we’ve heard these claim...I'm interested in buying a Colt Ar15-A3 Tactical Carbine model# 6721. The serial number in that list are explained as follows: BD AR15A3 Tactical Carbine 6721. BD000134 and Below (AR-15A3 Tactical Carbine - very rare model) The one I'm looking at buying has a serial number in the B001XXX range. I haven't had much luck contacting colt yet about ...AR 15 Serial Numbers over 30,000 was the Pre-Ban cut-off, call to verify.* (Some Eagle lowers below the 30,000 range were determined to be POST ban by BATF - call to verify) Armalite sells Eagle lowers, but sells factory complete rifles with Armalite lowers. AR 15 Serial Numbers Under Colt* Always Verify - Call to Verify 800-962-COLT

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The AR gene provides instructions for making a protein called an androgen receptor. Learn about this gene and related health conditions. The AR gene provides instructions for makin...Enter the serial number, without spaces or dashes, to search the database. If multiple models appear for your serial number simply match the date with the appropriate model, …Colt actually has serial number cutoffs, these are the last Pre-ban numbers in each series: CC001616, NL004800, TA10100, CHOI 9500, SL027284, BD000134, GCOI 8500, …Pre Ban Colt Ar 15 Serial Numbers. This semi-automatic action was chambered in the.223 or the 5.56 NATO caliber and is a gas operated rotating bolt which sits in the aluminum receiver. Additionally, the feed system on the AR 15 is a box magazine with varying capacities and various aftermarket manufacturers. The AR 15 comes in a wide array of ...AR15_1911. 1520 posts · Joined 2013. #7 · Apr 10, 2020 (Edited) One way to get the manufacturing date is to go to the Colt site, customer service and click on the serial number lookup, enter the prefix and 6 digit numbers. If no data found, if you still have the factory large plastic bag that wrapped the carbine, look for the date there.Jun 9, 2016 · The serial number does put it in late 1966. You have to remember that the prefix "SP" just denotes the model (SP1 in this case) and is not part of the actual serial number. That would be a really nice SP1 to have. The fact that the serial number is absent the SP would make it even more desirable to own in my opinion. Westfield, Indiana, home of the Indianapolos Colts, with its top-rated schools, and high median household income, is one of Money's Best Places to Live. By clicking "TRY IT", I agr...The serial number list is excellent if you want to know what year your Colt AR15 was made, but again, it doesn't tell you which company made it. CC001616 and Below - Pre-Ban. CH019500 and Below - Pre-Ban. GC018500 and Below - Pre-Ban. LH011326 and Below - Pre-Ban.Only catch is the serial number has a prefix of MH, which indicates Match HBAR. I already called Colt to verify the manufacture date, and they tell me it left the factory in 1992. They couldn't tell me why the lower was stamped as a Sporter Target Model with the MH prefix. ... AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive ...Generally speaking Colt AR-15 rifles produced before 1991 and after late 2009 accept small pin triggers while rifles produced by Colt between 1991 and late 2009 commonly take large pin triggers. ... You can call Colt Customer Service at 1-800-962-2658 and with your serial number they will tell you the month, day and year it was made. Posted: 2 ...Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. Warning . ... I have noticed some Colt Carbines for sale on AuctionArms.com whose serial numbers start with "LGC". I am familiar with the pre-ban carbines that whose serial numbers started with "CC" or "GC" but am not familiar ...Where do I check the components and what am serial numbers/markings am I looking for? Reactions: Blink II and BusaDave. Save Share. Like. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 Government Model Series 80 .45 pistol owner since 1984 Colt M4 Carbine owner since 2011 NRA Life Member since 1973. Reactions: Blink II and emm. ….

Colt Long Guns top. Berdan (Russian) Model Rifle Berdan (U.S.) Model Rifle Burgess Lever Action Rifle Colt - Sauer Drilling Colt - Sauer Bolt Action Rifle Colt - Sharps Sporting Rifle Colt AR-15 Sporter Colt'57 Bolt Action Rifle Coltsman Bolt Action Rifle Colteer 1-22 Bolt Action Rifle Colteer, Stagecoach & Courier .22 Rifles Franklin Military ...I'm no expert but most of the Colt AR-15A2 Gov't Model rifles I had seen have the GS serial number prefix. Here's a site that ties the GS prefix to the Gov't Model rifle. Colt AR-15 Serial Number List. Colt AR-15 Sporter SP1 rifle owner since 1971. Colt 1911 Government Model Series 80 .45 pistol owner since 1984. Colt M4 Carbine owner …The closest to the mfg date would be stamped on your factory plastic bag that's wrapped on your carbine. Like what member AMMOTECH posted go to the Colt site, Customer Services tab, then click Serial Number Lookup, but sometimes it won't have the info because the info are not loaded in their database yet. Posted: 8/11/2013 4:15:53 PM …The model number of that A2 SP2 rifle is R6500 and they were produced from 1984 up to 1989, it was replaced by the model R6550 AR-15A2 Government Model rifle. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 Government Model Series 80 .45 pistol owner since 1984 Colt M4 Carbine owner since 2011 NRA Life Member …1. How can I perform a Colt AR-15 serial number lookup? You can perform a Colt AR-15 serial number lookup by contacting Colt directly or using online databases. …Colt AR-15 serial numbers are essential for identifying and tracking firearms during manufacturing, distribution, sales, or in case of loss or theft. Colt started using a unique serialization system from July 1st, 1969 onwards. The structure of the serial number uses seven digits where the first two represent the year while remaining five ...1044 posts · Joined 2003. #1 · Dec 12, 2007 (Edited) I bought a ar from a gun shop that was closing. It is Colt model AR-15 SP1 serial # sp1155xxx. It does not have a forward assist but all else looks the same. Is this kind of unusual? Willie. West End Electric. Galveston Electricians.AR Sponsor: [ARCHIVED THREAD] - Colt Armalite 601 Serial Number 000150. ARCHIVED. Posted: 3/24/2019 2:33:23 PM EDT. Greetings. I obtained an early AR15 a while ago. It seems to be in original condition. As far as I know serial number range. 000001 to 000100 was used by Armalite for prototypes and the pre-serial-production rifles.Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. ... . It is a compilation of both personal information and information submitted from others from the Internet. ALL SERIAL NUMBERS SHOULD BE VERIFIED FROM THE MANUFACTURER PRIOR TO ANY PURCHASE OR ASSEMBLY. ... Colt 800-962-COLT ...This Colt AR-15 is a 3 digit serial number Model 01, and has some interesting features. The roll mark, which is a blend of company names, model designations and patents pending, stands outs. As does the green painted green handguard, grip, and stock, and the selector switch since it was a select fire rifle. Colt ar-15 serial numbers, Colt Sporters didn't appear until around 1993+/-. The name was changed from AR-15 as a work around for for the states that banned AR-15's by name. Maybe 1993 is retro to some, but most people consider the SP1 series as retro. Time keeps marching on. Colt Sporter and Sporter II is older than that believe 70s or 80s., This Colt AR-15 is a 3 digit serial number Model 01, and has some interesting features. The roll mark, which is a blend of company names, model designations and patents pending, stands outs. As does the green painted green handguard, grip, and stock, and the selector switch since it was a select fire rifle., There is a serial number look up at the Colt site's customer service but I tried it on my two LE6920 and it does not have any info, their database is not complete. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 Government Model Series 80 .45 pistol owner since 1984 Colt M4 Carbine owner since 2011 NRA Life Member since 1973., It has an LGC serial prefix which I have been unable to research. I can't seem to find any info on aprox date of manufacture or production numbers. The two mags included are dated 9-03. It is marked as "AR-15 A2 Government Carbine Cal. 223" with Colt Defense Hartford Conn USA above the trigger., A Colt AR-15 pre-ban refers to a rifle manufactured by Colt that was produced before the 1994 ban on certain features and accessories. These rifles are sought after by collectors and enthusiasts due to their historical significance and original features. ... The best way to determine if a Colt AR-15 is pre-ban is to research the serial number ..., Stream Colt Ar 15 Serial Numbers by Dawn Robinson on desktop and mobile. Play over 320 million tracks for free on SoundCloud., Commercial/export CAR-15 series. 202,447-379,353. 1965. US Property marked US Air Force M16 Colt's Model 604, and a few commercial export models. There are also examples of commerical/export marked models using the 20X,XXX serial number range produced in the late 1960's. 400,000 series. 1966-1973 or so., Colt Long Guns top. Berdan (Russian) Model Rifle Berdan (U.S.) Model Rifle Burgess Lever Action Rifle Colt - Sauer Drilling Colt - Sauer Bolt Action Rifle Colt - Sharps Sporting Rifle Colt AR-15 Sporter Colt'57 Bolt Action Rifle Coltsman Bolt Action Rifle Colteer 1-22 Bolt Action Rifle Colteer, Stagecoach & Courier .22 Rifles Franklin Military ... , Colt AR-15 HBAR Sporter Caliber .223 Serial SP 2270xx Tasco 3-9x scope Colt cheeckpiece Bayonet lug 20" barrel length ... up to 1992 they replaced the 6600DH Delta HBAR model with the R6601DH model marked "Sporter Match HBAR" with different serial number prefix, no bayonet lugs and some few later production of HBAR rifles the …, The last published serial numbers for the Python were in the "T" range. I suspect the number isn't PNO (letter O) it's probably PN0 (NUMBER zero). So the prefix would be PN and the numbers are 06331. That's the standard Colt followed from the 1970's on. This would allow running the series up to PN 99999. Posted: 12/30/2005 5:02:37 AM EDT., Firearms, handguns, pistols, rifles, revolvers. Serial Number Lookup Instantly retrieve vital product details, warranty information, and exclusive insights through our Serial Number Look-Up feature., With a 10 X scope I've seen groups of around .75 inch. Most all ammo will shoot 1.5 inch 5 shot groups at 100 however the barrel is not chrome lined and is 1:9 twist. This barrel shoots 22 rimfire ammo good with a Ciener conversion and some of the best groups were using Aguila 40 grain plated SE (.75 - 1 inch groups at 50 yards)., How To Find Your Rifle's Unique Serial Number? Finding your colt ar -15’s unique serial number could be tricky sometimes because different models have different …, Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear., What is a COLT AR 15 SP 1 Rifle Worth? A COLT AR 15 SP 1 rifle is currently worth an average price of $2,063.00 used . The 12 month average price is $2,032.14 used. The used value of a COLT AR 15 SP 1 rifle has risen $47.47 dollars over the past 12 months to a price of $2,063.00 . The demand of new COLT AR 15 SP 1 rifle's has fallen 3 units ..., The serial number on a Colt AR-15 is typically located on the lower receiver of the firearm. 1. How do I locate the serial number on a Colt AR-15? The serial number is …, Looking for what a COLT SP1 is worth? View our historical sales information to see market price, buying trends, and sales., Introduction to Colt Serial Number Lookup. Colt Serial Number Lookup provides crucial information about firearms manufactured by Colt's Manufacturing LLC through their unique serial numbers.. Established in 1855, Colt's Manufacturing LLC has been a prominent figure in the firearms industry, known for its innovative designs and high-quality firearms. . The serial numbers assigned to each ..., What is the manufacture date of a Colt AR-15 serial number 99061? No such sn in the AR-15 series. What year was colt ar-15 serial? Impossible to answer without the serial number. Call Colt and ..., Colt serial number, looking for Year made? M16A1 91338XX Thanks Ron Posted: 11/30/2018 10:50:01 PM EDT [#1] From info tacked in the Retro forum: 9,000,000 series ... AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry., I've tried testing a large number of models & serials to find the problems, but of course, it is hard to get it 100% perfect on the first go and if we can identify the problem areas, they can be easily corrected. Colt Archivist / [email protected] / 860-554-8088. Colt Archive Services. ei8ht, SHOOTER13, 72CZ and 5 others., Well, Colt serial numbers tend to go across the board in a rather unpredictable pattern so it's near impossible to read without reference books. All it takes to get the numbers to changes could be minor changes in the design, the beginnings of new time periods and many others. ... The 10 Best AR 15 Bipods to Buy In 2021. Carlos Perry. The 8 ..., Yes, you can use the serial number to determine the year your Colt AR-15 was made. 4. Are there any other ways to find out the year of manufacture? Colt’s serial number lookup tool is the most reliable way to determine the year of manufacture. 5. What format is the Colt AR-15 serial number in?, No matter the brand or size of your piano, it has been assigned a serial number. Some companies or models may have the number in different places but each one should have identifyi..., To read Colt 1911 serial numbers, look at the serial number located on the frame of the gun. This number can be used to determine the year and model of the Colt 1911. 1. Where is the serial number located on a Colt 1911? The serial number is located on the frame of the gun, typically on the receiver or dust cover. 2., Colt Long Guns top. Berdan (Russian) Model Rifle Berdan (U.S.) Model Rifle Burgess Lever Action Rifle Colt - Sauer Drilling Colt - Sauer Bolt Action Rifle Colt - Sharps Sporting Rifle Colt AR-15 Sporter Colt'57 Bolt Action Rifle Coltsman Bolt Action Rifle Colteer 1-22 Bolt Action Rifle Colteer, Stagecoach & Courier .22 Rifles Franklin Military ..., Jul 19, 2023 · Pre ban AR-15 serial numbers are unique sets of markings found on rifles manufactured before September 1994. These special formatting rules include alpha numeric combinations with specific letter prefix codes such as SP1, XM15 etc. Pre ban rifles usually have a “COLT AR-15” roll-mark or in some cases the older “AR-15” designation. , AR-15 » AR Discussions. AR Sponsor: [ARCHIVED THREAD] - Colt AR-15 A2 Sporter II Serial Numbers. ARCHIVED. Posted: 9/26/2002 7:32:30 AM EDT. Can a RKI tell me approximately what year/years Colt AR-15 A2 Sporter IIs in the SP32XXXX and SP33xxxx serial ranges were built?, Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear. ... Colt M4 Serial Number Range? ... 5/7/2020 10:50:43 PM EDT I've seen the serial number ranges for the early production M16's up until the 1980s. But can't find anything from the past 20 years on military issue Colt and FN, Oct 11, 2015 · I'm no expert but most of the Colt AR-15A2 Gov't Model rifles I had seen have the GS serial number prefix. Here's a site that ties the GS prefix to the Gov't Model rifle. Colt AR-15 Serial Number List. Colt AR-15 Sporter SP1 rifle owner since 1971. Colt 1911 Government Model Series 80 .45 pistol owner since 1984. Colt M4 Carbine owner since 2011. , The serial number is TAO32XX. Also under the dust cover most I have seen have ridges running along and down the outside of the mag well with 2 holes. ... Colt AR-15 Sporter SP1 rifle owner since 1971 Colt 1911 Government Model Series 80 .45 pistol owner since 1984 Colt M4 Carbine owner since 2011, The serial number is SER. SP 187716 below the model number, according to my personal reference list that serial number was made in 1982, in 1983 the serial number started in SP 192XXX. There are times Colt use their serial numbers not in sequence, there are some years that they skip in random. The Colt site serial number look up sometimes does ..., Firearms, handguns, pistols, rifles, revolvers. Serial Number Lookup Instantly retrieve vital product details, warranty information, and exclusive insights through our Serial Number Look-Up feature.