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.

Features :

• “Replaces your 1-3/8″-24 Adapter”
• 17-4 Stainless Steel
• Black Oxide
• “1-3/8″-24 Mount Thread Pitch”