The Rook from the DisplacR Series line of products is the most effective when you're concerned about your neighbors on the range. This incredibly flat shooting, entirely symmetrical muzzle device gets it's sleek name from the equally sleek design. The exhaust ports along the exterior radius provide incredible recoil mitigation while leaving minimal over-pressure issues around you. Your Rook is your castle. Size: 2.02" x 0.84"&l