User Panel
User Panel
User Panel
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Posted: 6/15/2009 7:37:25 PM EDT
[#1]
Quoted: This is what I have 20in Colt upper, A1 upper, with a A2 barrel. I want to switch out the A1 upper for a A3 upper. Are M4 feedramps on the receiver or the barrel? Can I use a Upper with M4 feedramps on that barrel or do I have to get one with no feedramps? Thanks You would have a rifle barrel extension, and an upper with M4 cuts... a HUGE no-no. You need an upper w/o the cuts. |
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Posted: 6/15/2009 8:16:51 PM EDT
[#2]
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Posted: 6/16/2009 3:37:55 AM EDT
[#3]
Thanks for the info! Just what I was looking for.
Nice Pic, Explains alot. |
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