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9/16/2011 7:23:08 AM EDT
Anybody have any experience or an opinion on these?
They appear to be Colt pattern which I like. Ditto on the M4 profile barrel.
Are they worth it at $499 shipped?
http://www.aimsurplus.com/product.aspx?item=XAIMU9mm&name=AIM+TAC+16%22+M4+9mm+Upper+Receiver&groupid=301&search=9mm+upper
9/16/2011 1:21:13 PM EDT
[#1]
Likely cmmg with a hand guard swap.

RRA 9mm flat top uppers are only $445 delivered from adco, but not in the same exact configuration.

9/16/2011 5:33:46 PM EDT
[#2]
I picked one of the AIM uppers up a few weeks ago. Yes, it is Colt pattern, and with the exceptions of having the MOE HG and no bbl markings, it appears to be identical to my buddy's CMMG upper.

I haven't had a chance to fully sight it in as I had to spend time getting my converted Uzi mag tweaked, but aside from mag issues it was reliable, and accuracy appeared pretty good.
9/17/2011 1:23:59 PM EDT
[#3]
Quoted:
Likely cmmg with a hand guard swap.

RRA 9mm flat top uppers are only $445 delivered from adco, but not in the same exact configuration.



Thank you for that! Saves me a bunch.
9/25/2011 12:36:50 AM EDT
[#4]
I don't see the purpose in getting a complete 9mm upper and having a forward assist and a .223 brass deflector on it as well as the 9mm brass deflector. I personally prefer a slickside upper on a 9mm.
Like this:
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=242
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