AR Sponsor
Posted: 6/2/2007 8:05:20 PM EDT
|
what is the difference between a regular barrel extension and a m4 barrel extension? just curious because i have a colt lightweight barrel that came with the a2 upper that has the 4 stamped above the gas tube and m4 feed ramps...... i want to put a flatop upper reciever on instead of the a2 but ive noticed bravo company has both flatop uppers that are for barrels with m4 extensions and uppers for barrels with regular extensions ........ so how do i tell the difference???? i would think that since its already on an upper reciever that has m4 feed ramps then it has the m4 barrel extension ? but not sure............... thanks all shocker |
|
haha, you're supposed to wait untill thursday to ask that. here... m4ramps |
AR Sponsor