Rebel_Rider1969
Well Known Nuisance
Talked to a guy awhile back about brown bear sub-sonic ammo. He told me out of the 16 inch ak it was sub-sonic, changed to an AR15 with 10.5 barrel it would crack, and break the sound barrier. Dont know if he chronoed the ammo, but how could it do this?? Is the AR that much more effective?