CMMG .22 Locking Lug Upgrade Kit 22BA477

CMMG LOCKING LUG UPGRADE KIT 22BA477 The Brass Locking Lug is an Upgrade for the Model Bravo & Model Echo Conversion Kits. The Brass Lug rotates and locks in the barrel extension. This eliminates play between the conversion kit and the receiver. Attaches only to stainless steel kits.