Shop › GEMTECH QUICKMOUNT MB 7.62 5/8-24 GEMTECH QUICKMOUNT MB 7.62 5/8-24 $94.05 Gemtech QUICKMOUNT, Carbon Cutting Muzzle Brake, 7.62NATO, 5/8X24, Black Finish 12155 Quantity: Add To Cart Added! Gemtech QUICKMOUNT, Carbon Cutting Muzzle Brake, 7.62NATO, 5/8X24, Black Finish 12155