Lone Wolf Distributors Flash Hider, Black Oxide Finish, Fits 1/2x28 9mm Barrels LWD-FH9 Lone Wolf Distributors precision CNC machined flash hiders are similar to the AR-15 & M-16 A2 series flash hiders whose proprietary design is world famous! This long sought Glock accessory installs quickly and easily. No tools required.