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Archived [ARCHIVED THREAD] - 9mm Build w/Std. A3 Upper?
Posted: 10/8/2007 6:44:21 PM EDT
Hey gang,
Might pick up a Colt 6450 and convert it over to a standard A3 upper. Was curious if any of you guys have done 9mm builds on non-9mm upper receivers? I know the forward assist will not function, which is fine, but I was wondering what kind of ejection to expect with a standard 5.56 brass deflector...brass in my face or will it work?

Link Posted: 10/8/2007 6:59:39 PM EDT
[#1]
I used a CMMG upper with the 9mm deflector.  Worked fine for me.  I removed the forward assist, and even with out a plug, there was no blow back debris.

Link Posted: 10/8/2007 7:47:32 PM EDT
[#2]

Quoted:
Hey gang,
Might pick up a Colt 6450 and convert it over to a standard A3 upper. Was curious if any of you guys have done 9mm builds on non-9mm upper receivers? I know the forward assist will not function, which is fine, but I was wondering what kind of ejection to expect with a standard 5.56 brass deflector...brass in my face or will it work?


The 9mm deflector is for gas not brass you will be fine. Mike

Archived [ARCHIVED THREAD] - 9mm Build w/Std. A3 Upper?
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