I want to install one of these on my M4 and am wondering if it will work?
UTG -1 Piece True 'Free Float' Quad Rail, Mid-Length
If I want to put this on will I also need one of these as it is a mid length and not a CAR length?
Rock River Arms - Low Profile Gas Block
If this will work is there any reason that I wouldn't want to do it.
I am new to this AR stuff so please be kind.
UTG -1 Piece True 'Free Float' Quad Rail, Mid-Length
If I want to put this on will I also need one of these as it is a mid length and not a CAR length?
Rock River Arms - Low Profile Gas Block
If this will work is there any reason that I wouldn't want to do it.
I am new to this AR stuff so please be kind.


















































