Anyone seen a M-4 with A2 upper?

[fowler]

A retro I am working on is going to have a A2 upper with 16" M4 profile barrel. Seems these are middle ground carbines between the Xm-GAU types of the beginning to the current M4 models. I like the A2 upper with peep sites. I found some Colt 727 pictures,but not any good U.S. information on use in service or dates.

[jtb0311]

I believe Colt model 727s were built with both A1 and A2 upper receivers. I'm not sure if there was ever an actual, USMIL designated M4 that had an A2 upper, rather than a flat top.

[Biggus]

Very early batches of M4s and M4A1s had the A2 uppers, which were replaced fairly quickly.

727s came before M4s, although they shared a few features in the early days of M4 production.

723s had A1 or C7 uppers, and 727s had A2 uppers.

[fowler]

Yes looks like Airforce GAU's company armourer would rebuild with a mix master of parts as other branchs in the teething years of the birth of the M4's. I have seen M-4 stepped barrels on A1 rec.'s to. Keep um in service and working.

[AMMOTECH]

A guide to some of the AF carbines:
http://pullig.dyndns.org/retroblackr...SAFGdeCrb.html





.

[fowler]

Nice photo's ammotech. I have been on retroblackrifles,but never looked at the airforce carbine blog,very nice. I like the oldschool airforce GAU's.

[scottryan]

Very early batches of M4s and M4A1s had the A2 uppers, which were replaced fairly quickly.

Got any proof of that?

[Biggus]

Got any proof of that?

Just from memory. What I'm thinking of might have been a rebuilt 727, but I was sure I was looking at an M4. This is going back a good decade or more.

[kaltesherz]

Got any proof of that?

At the Ft Benning Infantry Museum they had on display the first M4 ever built, IIRC it had an A2 type upper and a glossy finish. I don't know if it made it to the new Infantry Museum...

[scottryan]

At the Ft Benning Infantry Museum they had on display the first M4 ever built, IIRC it had an A2 type upper and a glossy finish. I don't know if it made it to the new Infantry Museum...

That isn't proof.

Nobody has posted a property marked matching M4 or M4A1 with a fixed carry handle. This debate has gone on for 10 years.

Everyone one of these stories turns out to be a model 727 or a property marked M4 lower that was rebuilt with a 727 upper, or some type of colt prototype.

I have uppers in my personal collection that were from the first month of M4 and M4A1 production and they have C AF gray flattop uppers.