GC_UPC Barrett AM338 Muzzle Brake Adapter Mount .338 MAP 16129 show more like this 7.95 TheGunDock.com GC_UPC Barrett 16129 Adapter for AM338 $181.99 16129 show more like this 4.03 GrabAGun.com GC_UPC Barrett AM338 Muzzle Brake Adapter Mount .338 MAP 16129 show more like this Free on Guns, $9.99 Accessories, $14.99 Ammo Tombstone Tactical GC_UPC Barrett AM338, Muzzle Brake Adapter Mount (required to use with the AM338) 16129 $235.00 16129 show more like this Free Shipping over $250 Eurooptic GC_UPC Barrett AM338 Muzzle Brake Adapter Mount (required to use with the AM338) 16129|16129 $235.00 16129 show more like this Shipping fee from $9.99 Scopelist GC_UPC Barrett AM338 Muzzle Brake Adapter Mount .338 $235.00 16129 show more like this 14.99 Locked Loaded GC_UPC Barrett AM338 Muzzle Brake Adapter Mount .338 $235.00 16129 show more like this Free shipping on orders over $300 Skogen’s Gun Supply