Phase 5 Weapon Systems Inc FlashCan Muzzle Device 1/2x28 TPI Black Small. Forcing the muzzle blast down-range will enhance your and your range neighbors experience when shooting a short barrel rifle or AR pistol. The Phase 5 FlashCan will not reduce felt recoil and will not reduce flash signature. The hex design gives the FlashCan the perfect styling that custom gun builders are looking for. Specifications for Phase 5 Weapon Systems Inc FlashCan Muzzle Device: Manufacturer: Phase 5 Weapon Systems Inc Length: 2.25 in Weight: 5.8 oz Finish: Mil-Spec Black Parkerized Color: Black Package Contents: Phase 5 Weapon Systems Inc FlashCan Muzzle Device 1 Crush Washer Phase 5 Weapon Systems Inc FlashCan1/2-28: FlashCan Muzzle Device 1/2x28 TPI Black Small