The YHM Nielsen Booster Assembly replaces the direct thread adapter on a YHM Sound suppressor or any other suppressor on the market which utilizes the 1-3/8"-24 thread. They are designed to be used on handguns and barrels which require a Nielsen Booster. 

Compatible Pistons:

• Silencerco
• Rugged
• Deadair Odessa

Features:

• Replaces your 1-3/8"-24 Adapter
• 17-4 Stainless Steel
• Black Oxide
• 1-3/8”-24 Mount Thread Pitch
• *DOES NOT INCLUDE PISTON*
• **NOT COMPATABLE WITH SIDEWINDER PISTONS**