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Posted: 6/14/2007 2:43:55 PM EDT
Im not new to AR's but I am building one for my dad and he wants a 20" barrel with an M4 collapsible stock. Will this cause any reliability issues, I know it will work bcuz I put the 20" upper on a lower with a magpul CTR stock. Should I use a heavier buffer if I do this?
Link Posted: 6/14/2007 3:41:56 PM EDT
Link Posted: 6/15/2007 4:05:47 PM EDT
thanks!
Link Posted: 6/15/2007 5:10:23 PM EDT
it will be good to go--just use the correct buffer and spring for the tube
Link Posted: 6/16/2007 7:08:12 AM EDT
works fine.

Link Posted: 6/16/2007 8:17:06 AM EDT
[Last Edit: 6/16/2007 8:20:17 AM EDT by AKARS]
yep, standard buffer works just fine.

Link Posted: 6/16/2007 8:32:11 AM EDT
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