The Yankee Hill Machine Co Nielsen Pistons are compatible with the YHM booster housing YHM-2055 as well as many popular pistol suppressors. Constructed from heat treated 17-4 stainless steel for maximum durability and corrosion resistance. The Nielsen Pistons feature 10 adjustment points to zero any impact shift.
Threads: M16x1LH
Caliber: .45 Cal
Threads: M16x1LH
Caliber: .45 Cal
