Selling a 14.5" with perm. attached Y-Comp brake, Bushmaster M4 complete upper with M4 handguards, bolt assembly, CH, etc.
I also have a fixed CAR stock that includes spring, buffer and buttpad.
All you need is a lower receiver with internals and you're ready to fire!
I have shot about 750 rds through it.
Note: the upper and stock in the pic is for sale, NOT the lower receiver.Click here for pic