YHM’s Nielsen Pistons are compatible with YHM’s booster housing YHM-2055 as well as many popular pistol suppressors. They are constructed from heat treated 17-4 stainless steel for maximum durability and corrosion resistance. These pistons feature 10 adjustment points to zero any impact shift and are available in a variety of thread patterns to fit most firearms.
9mm, .45 ACP
1/2×28, 1/2×36, M13.5×1 LH, .578×28, M16x1 LH, M16x1 RH