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Page Armory » M-16
Posted: 8/6/2023 2:57:50 PM EDT
[Last Edit: snhar15]
I have recently come across an M16A1 with a 5 million series serial number. I can't find any information about this series online. Mostly I see 9 million series. Is there anything special good or bad about the 5 million series from Colt?
Link Posted: 8/6/2023 3:42:16 PM EDT
[#1]
Originally Posted By snhar15:
I have recently come across an M16A1 with a 5 million series serial number. I can't find any information about this series online. Mostly I see 9 million series. Is there anything special good or bad about the 5 million series from Colt?
View Quote


I have one "us property"

Same as all others
Link Posted: 8/6/2023 3:56:19 PM EDT
[#2]
Interesting, the one I saw is not marked.
Link Posted: 12/3/2023 1:38:51 PM EDT
[#3]
Mine is us property also. Came from department of energy.
Link Posted: 12/3/2023 1:46:06 PM EDT
[#4]
As best I can determine mine is a model 613.
There are no US Property markings.
Link Posted: 12/4/2023 2:44:51 AM EDT
[Last Edit: GPSIG] [#5]
5,000,000-5,4X,XXX (app)
1973-1982
US Property marked M16A1 Colt's Model 603 (not aware of any Air Force M16 Colt Model 604's with serial numbers this high).  Also some export/commercial models.

(from the ARF M-16 Serial Number Guide: USGI-M16 Series Variation Guide Edition V)
Page Armory » M-16
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