This part is used in conjunction with pistons on firearms with fixed barrels, such as rifles and submachine guns. This piece is used in place of the piston booster spring and is needed to use pistons on the Osprey 2.0.
- 17-4 stainless steel
- Heat treated
State & Local Restrictions — Order Reviewed Before It Ships
Some firearms, magazines, and accessories are restricted or prohibited in certain states, cities, and counties, and these laws change often. Each order is manually reviewed against the current laws for your shipping address before it ships. If we can't lawfully ship this item to your location, we'll contact you to cancel or adjust your order and issue a refund. You're responsible for knowing and following the laws where you live — if you're unsure, please check or ask us before ordering.
