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Nearly Complete list of PreBan/Post Ban serial numbers timeline

86K views 10 replies 7 participants last post by  Mista Bone  
#1 ·
O.C., you can sticky if you see fit. Took awhile to find this info.
Thanks

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By Geremy Chubbuck (chubbg@champint.com)

Disclaimer: This list is correct to the best of my knowledge, however, I accept absolutely no responsibility for the accuracy of this information or for the consequences and/or damages occurring from any inaccuracies. I have compiled this list for the purposes of sharing information only. This is not intended to be used in any way except for personal entertainment. 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. It should be noted that it is a felony to possess a Post-Ban (newly assembled after Sept 13, 1994) assault weapon.
If any information presented here is found to be incorrect or you have additional information to contribute, please contact me via E-Mail (hkusp40@midmaine.com) and I will update and re-issue the list.
Note: All items marked with a single asterisk (*) are taken from http://home1.gte.net/bblakley/ban/index.htm. The year/serial numbers under Colt SP series was forwarded to me by an individual whose return address I no longer have. Double asterisk (**) under Bushmaster, a person on the internet e-mailed me that he had a lower that was shipped stripped (thus not a complete rifle) in 1991 from Bushmaster with serial #0327XX - ALWAYS CALL TO VERIFY.


Advanced Armaments
No information - Apparently machined from bar stock aluminum, lowers are marked as M-15.

American Spirit Arms (Formerly "Sun Valley Traders")
ALL lowers are Post-Ban. Began introduction of lowers and rifles in mid/late 1998. Noted as having good fit & finish. Also, reported to be manufactured by Lewis Machine & Tool.

Armalite/Eagle 800-336-0184
Slightly over S/N 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.

Bohica
Made stainless steel lowers, rumored to have also made AR-15 pistols. Lower marked M16-SA. This is NOT verifiable info as it came from the Internet. Out of Business.

Bushmaster 800-998-SWAT
Below L051000 - Assembled Pre-Ban Rifles and some pre-94 lowers.**
L051001-L063000 - Mixed Pre-Ban Assembled Rifles and Pre-Sept 94 Lowers (Call to verify)
L063001 and Up - Post-Ban

Century Arms
Lower marked CIA. All are Post-Ban. Made with Olympic Arms Receivers under contract.

Colt 800-962-COLT
CC001616 and Below - Pre-Ban
CH019500 and Below - Pre-Ban
GC018500 and Below - Pre-Ban
LH011326 and Below - Pre-Ban
MH086020 and Below - Pre-Ban
NL004800 and Below - Pre-Ban
SL027246 and Below - Pre-Ban
SP360200 and Below - Pre-Ban
1963 SP00001-SP00023**
1964 SP00101
1965 SP02501
1966 SP05600
1967 SP08250
1968 SP10750
1969 SP14000-SP14653
1970 SP15001-SP15473
1971 SP16001
1972 SP19401
1973 SP24201
1974 SP32601
1975 SP43801
1976 SP55301
1977 SP67651
1978 SP83400
ST038100 and Below - Pre-Ban
TA10100 and Below - Pre-Ban
BD000134 and Below - Pre-Ban (AR-15A3 Tactical Carbine - very rare model)
MT00001 and Above - Post-Ban
BK000001and Above - Post Ban (CAR-A3)
CST000001 and Above - Post-Ban (Began Late 1997 Production)
CMH000001 and Above - Post Ban
CCH010000 and Above - Post Ban MT6700, MT6700C and MT6700CH series, 1998 production

Dalphon (360) 427-6867
All are POST ban. Cast 356-T6 Aluminum, hardcoat anodized per mil-spec A-8625

DPMS 800-578-3767
Below 10300 - Pre-Ban.
Some or all lowers are cast. Black in color. Some lowers are Stainless Steel.

Eagle Arms 309-944-6939
Now called ArmaLite. They will not give out a list, but will look up on an individual basis. Lower receiver serial numbers DO NOT begin with EA.

Essential Arms (337) 945-0185
All are Pre-Ban as they went out of business in 1993. (DPMS bought them prior to the Ban) Call DPMS Lower receiver serial numbers begin with EA. Some or all lowers are cast. Light gray coloring. It is rumored that Ruger investment casted the lowers for Essential Arms. ***Updated by Typeo1313*** Essential Arms has recently started produceing recievers again. Most if not all are marked J-15-F. Those who live in states still under the AWB should verify their receiver is compliant with their states laws.

Frankford Arsenal
All are pre-ban. As rumor has it, Olympic Arms produced the lowers for Frankford Arsenal Call Olympic Arms and then Frankford assembled the weapon. A2 configuration lower. Frankford Arsenal went out of business in 1987. (Info from RudolphoS@aol.com)

Hesse Arms
All AR-15’s are post ban. Manufacturing began late 1997/early 1998.

J.L.M & Sons* (603) 425-1860
SC001 thru SC250 are Pre-Ban. All others are post ban.

Knights Armament Co.
All AR-15’s are post ban, very few AR-10’s are pre-ban. No further info at this time.

Military Manufacturing (M2) (FAX 702-263-7875)
All were military/law enforcement only. Full auto lowers were standard, semi were optional. Lowers were machined form raw bar stock with improvements incorporated - 18deg magazine angle and square mag release. (See: http://www.m2corp.com/HOME.htm)

Nesard
See "Sendra" below.

Olympic Arms 360-459-7940· 4-numbers only - very very old. Probably machined from bar stock.
· 1-letter and 4# - older receiver, but forgings. (Some are newer, POST ban castings - call to verify.)
· 2-letters & 4# - most receivers follow this pattern.
· 2#, 2 letters, 4# - the first two #'s are year of manufacture of the lower.
· 2 letters, 6# (separated 2 & 4 - e.g. SA 96 0000) - first 2 #'s are year of manufacture.
· "ICR" marked lowers are an European customer’s overrun, has an unused additional hole - all ICR lowers are post ban.
Olympic Arms Manufacturer’s Notes:
1. There were some odd variations and some custom serial numbers mixed in thru the years also. And, some receivers manufactured after the ban have the year stamp after the model name, not in the serial #. And if you don't see a year stamp on the receiver, it is not necessarily pre-ban.
2. Serial numbers that end in "D" were duplicates and one was changed using this letter.
3. Recently some serial numbers have left with one or two letters followed by FIVE numbers. The last numbers are either 5's or 0's. 99.9% of these are post-ban.
4. "Older" does not always mean pre-ban as per Corey Sattler.
5. "BL" serial number series lowers are transitional with some pre and some post ban. If you have a "BL" you’ll have to call to verify for certain.

Professional Ordinance
All are post ban (including all of the pistols).

PWA (360) 438-3983
35222 and Below - Pre-Ban (Note:Some lowers are cast not forged. Out of business) Post-ban have a year prefix in the serial number. Rumored to have only sold lowers.

Rocky Mountain Arms
Producer of AR-15 type pistols.

Sendra
Post-ban receivers have a circle milled into the side of the magwell. They were originally bead-blasted to a non-glare finish. All others are pre-ban. (This is unverified info…) Also, they used to be NESARD. Rumored to have been owned by Dick Drasen (currently M&A Parts) and produced lowers only out of Barrington, Illinois. No complete guns were sold (again, unverified info).

SGW
Olympic Arms was started as Schuetzen Gun Works (SGW), Pre-ban receivers have "Stop Sign" logo.​
 
#2 ·



Colt Model Numbers


by Michael Jones:

Rxxxx =
'pre-ban' configuration (bayo lug, flash suppresor; 'transition models' might only have flash suppresors and are probably 'blocked')

MTxxxx =
'post-ban' configuration (fixed stock, NO bayo lug, NO flash suppressor)


xxxxdc =
upper conversion kits

xxxxdh =
Delta HBAR


R6000
AR15, 20", 1in12 twist, several flash suppresors, bayo lug

R6001
AR15 Carbine, 16" standard, 1in12 twist, collapsable stock


R6222
.22 conversion kit


R6420
AR15a2 Carbine, 16" standard, 1in7 twist, a2 birdcage, bayo lug

R6430
Sporter Lightweight, 9mm, 16" standard, 1in10 twist

R6430dc

MT6430
post-ban 6430 (stock???)

R6450
Sporter Lightweight, 9mm carbine, fixed stock

R6500
AR15a2, 20" standard, 1in7 twist, a2 birdcage, bayo lug

R6510
AR15a2, .222 cal, 20" standard

R6520
AR15a2 Government Model Carbine, 16" lightweight, 1in7 twist, a2 birdcage, bayo lug, collapsable stock

R6520dc

R6530
Sporter Lightweight, 16" lightweight, 1in7 twist, a2 birdcage

R6530dc

MT6530
post-ban 6530

R6550
AR15a2 Government Model, 20" standard, 1in7 twist, a2 birdcage, bayo lug

R6550cc
same as 6550 with Z-Coat green tiger stripe camouflage finish, matching soft case

R6550k
Sporter Target, 6550 without bayolug, with 6222 .22 conversion kit

R6551
Sporter Target, same as 6550k without .22 conversion kit

R6551dc

MT6551
post-ban 6551

R6600
AR15a2 HBAR, 20" HBAR, 1in7 twist, a2 birdcage, bayo lug

R6600dh
AR15a2 Delta HBAR, same as 6600 + 3x9 Tasco, ARMS mount, cheekpiece, hardcase

R6600k
Sporter Match HBAR, same as 6600 without bayolug, with 6222 .22 conversion kit

R6601
Sporter Match HBAR, same as 6600k without conv.kit

R6601dc

R6601dh
Sporter Match Delta HBAR, same as 6601 + 3x9 Tasco, ARMS mount, cheekpiece, hardcase

MT6601
post-ban 6601

AR6620dc
M4 upper conv.kit, 16" standard, 1in7 twist, a2 birdcage, bayo lug, side sling adaptor

NOTE 67xx series barrels are NOT chrome lined unless noted

R6700
Sporter Competition HBAR, 20" HBAR, 1in9 twist, flattop

R6700ch
Sporter Competition HBAR, range selected, chosen for superior accuracy

R6700dc

R6700s
Sporter Competition HBAR, same as 6700 + 3x9x40mm Tasco and carry handle

MT6700
post-ban 6700

MT6700dc

R6701
Sporter Competition HBAR, lmtd.ed. 2000 rifles(???), 1in9 twist, flattop

R6721
AR15a3 Tactical Carbine, 16" HBAR chrome lined, 1in9 twist, flattop, a2 birdcage, bayo lug, collapsable stock, 134 manufactured pre-ban

R6721dc

R6724
Sporter Competition HBAR, 24" HBAR, 1in9 twist, flattop, shaved front sight

R6724dc
upper conv.kit

R6731
AR15a3 Competition HBAR, 16" HBAR, 1in9 twist, flattop, a2 birdcage

R6731dc

MT6731
post-ban 6731

MT6731dc

R6750
Sporter Competition HBAR, 20" Extra Heavy HBAR, 1in7 twist(???), special handguard, bipod

R6821dc
upper conv.kit, 7.62x39, 16" HBAR, 1in12 twist, flattop, a2 birdcage

R6830
Sporter Lightweight, 7.62x39, 16" lightweight, 1in12 twist, a2 birdcage

R6830dc

MT6830
post-ban 6830

R6850dc
upper conv.kit, 7.62x39, 16" HBAR, 1in12 twist, flattop, a2 birdcage

R6851dc
upper conv.kit, 7.62x39, 20" HBAR, 1in12 twist, flattop, a2 birdcage


R6900
???, 20" HBAR, 1in9 twist, a2 birdcage

R6900dc
upper conv.kit
shouldn't this be MT6900dc?

MT6900
upper conv.kit, 20" HBAR, 1in9 twist
is there an R6920 complete rifle? LEO/Military only?

AR6920dc
M4 upper conv.kit, 16.1" standard, 1in7 twist, flattop, a2 birdcage, bayo lug, carry handle, side sling adaptor

RO6920dc
M4 upper conv.kit, 14.5" standard, 1in7 twist, flattop, a2 birdcage, bayo lug, carry handle, side sling adaptor
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"The only thing necessary for the triumph of evil is for good men to do nothing." Edmund Burke

"Political Correctness is a doctrine, fostered by a delusional, illogical
minority, and rabidly promoted by an unscrupulous mainstream media, which holds
forth the proposition that it is entirely possible to pick up a turd by the clean end."

quote: Originally posted by nunn
Fess up, ya RancheroPaul-smelling SOB!
"A government big enough to give you everything you want, is strong enough to take everything you have". Thomas Jefferson

 
#7 ·
I have a question:

I was looking at the Serial numbers on a Bushmaster that came into my possesion...It is serial number L041551.

I am interested in the year of manufacture. I looked at the serial number list and it prompted me to ask.

Thanks in advance guys!