Smith & Wesson M&P22 Compact Threaded Barrel Adapter, 1/2x28PRICE: $39.98The Smith & Wesson M&P22 Compact Suppressor Adaptor Kit converts the M&P22 Compact barrel from a 3/8 inch x 24 thread pitch to a 1/2 inch x 28 thread pitch to accommodate the more common 1/2 inch x 28 suppressors and muzzle devices. SKU: 3002050 |