SR25 BCG

AR/M4 Beyond 5.56/.223

fmiq June 3, 2011, 2:45am 1

Can this be used in a DPMS upper?

LtNovakUSA June 3, 2011, 8:44pm 2

Check out this thread:

https://www.m4carbine.net/showthread.php?p=1006008

Seems that you will need a gage