Utilizing modern manufacturing processes, Summit manufactures purpose built gear for a wide range of firearms. View cart “Summit 1/2″ Crush Washer” has been added to your cart. Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 4 results Quick View Quick View Bottom Metals & Magwells, MagwellsSummit M&P 15-22 Magwell $99.95 Add to cart Quick View Quick View Muzzle BrakesSummit 1/2″ Crush Washer $9.95 Add to cart Quick View SOLD OUT Out of Stock Quick View Muzzle BrakesSummit Muzzle Brake with Blast Shield 223 1/2×28 $99.95 Out of stock Quick View SOLD OUT Out of Stock Quick View Muzzle BrakesSummit MB101 2 Port Muzzle Brake 223 1/2×28 $59.95 Out of stock