Ive not had my BM for to long! XM15 shorty w/ 16 inch Barrel with no muzzle Break,Also has the A1 Upper with a A2 rear sight.
The A@ apperture was the only thing I changed except for the pistol grip I change to a storage compartment grip!
I have to say BUSHMASTER IS THE BEST!!!!
I'm Sold I will never buy a different Brand!!
Service is the Best Also!!!