WASR-10 rifle with no bump stock fitted Bump stocks or bump hearth stocks are gun stocks that could be used to assist in bump firing, the act of utilizing the recoil of a semi-automatic firearm to fireplace cartridges in quick succession. The Stokes mortar (earlier mentioned) was the most effective https://machguns.com/product/m10-9mm-rpb-mac-excellent-b1858/