Home / Accessory-Silencer Accessories / Gemtech SHIM SET 556MM 1/2-28 View cart “Gemtech ADAPTER SIG MOSQUITO” has been added to your cart. Gemtech SHIM SET 556MM 1/2-28$700 In stock Gemtech SHIM SET 556MM 1/2-28 quantity Add to cart SKU: 3013332 Category: Accessory-Silencer Accessories Product ID: 61326 Description Description 1/2-28Fits 5.56mm Rifles Related products SilencerCo DELTA 1/2X28 THREAD SPACER $1900 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 9MM 1/2X28 $7495 $7135 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 $8211