|
The M4 has 2 diffeernt chambers. You can have an M4 profile barrel with a regular feed ramp. Or you can have an M4 with an M4 feedramp. All will work on AR15's.
__________________
"Gun control is like trying to reduce Drunk Driving by making it tougher for sober people to own cars"
Walk softly and carry a big SIG.
|