The Gemtech QuickMount 5.56mm Flash Hider, 1/2-28 (Gemtech part no. 12145) is the muzzle device for running a Gemtech QuickMount suppressor on a 5.56 rifle. Gemtech redesigned it from user feedback to be more aggressive, so less carbon builds up in the suppressor and it is less likely to get stuck. It has an overall length of 2.4 inches and is pre-drilled for pinning on 14.5-inch barrels. It is made for Gemtech QuickMount 2-lug suppressors and is not compatible with the newer Elite Taper Mount (ETM) system.

Key Specifications

• The device is sized for 5.56mm and threads onto the muzzle at 1/2×28.
• Overall length is 2.4 inches, sized for use on 14.5-inch barrels.
• It is pre-drilled for pinning, so a gunsmith can pin it to a 14.5-inch barrel.
• The 3/4-inch wrench flats are larger than before, which makes installation easier.
• A Blank Firing Adapter (BFA) groove adds suppressor options and training use.
• The extended area behind the lugs is intended for short barrel rifles.
• Built-in carbon-cutting grooves cut down on carbon build-up in the suppressor.
• A precision mounting shim kit is included for setting up the fit.
• It is made for Gemtech QuickMount 2-lug suppressors.
• It is not compatible with the newer Elite Taper Mount (ETM) system, so match it to the right suppressor.

Frequently Asked Questions

Which suppressors does this flash hider work with? Gemtech says it is for use with all Gemtech QuickMount 2-lug equipped suppressors and that it is not compatible with the newer Elite Taper Mount (ETM) system.

Is a shim kit included? Yes. A precision mounting shim kit comes with the flash hider.

Can it be pinned to a 14.5-inch barrel? Yes. At 2.4 inches overall it is made for 14.5-inch barrels and is pre-drilled for pinning.

Buy the Gemtech QuickMount 5.56mm Flash Hider, 1/2-28

Matching the muzzle device to the suppressor mount is the whole job here, and this one is made for the QuickMount 2-lug system. Order this AR muzzle device from our Lubbock, TX gun shop for fast, insured shipping.