This Gemtech muzzle brake (brand part no. 13817) is built for reliable alignment with Gemtech’s ETM-equipped suppressors, measuring 2.375 inches and pre-dimpled for a gunsmith to pin and weld it to a 14.5-inch barrel, bringing the total length up to the legal 16-inch rifle minimum. Gemtech designs the ETM interface to virtually eliminate the carbon lock-up that can occur between a muzzle device and suppressor after sustained firing. This Class 3 accessory is an ordinary Title I muzzle device, not a suppressor itself.

Key Specifications

• Measures 2.375 inches in length.
• Threaded for ETM-equipped Gemtech suppressors.
• Pre-dimpled for pin-and-weld to a 14.5-inch barrel.
• Sold under Gemtech’s 7.62 ETM model designation.
• Designed to virtually eliminate carbon lock-up with a suppressor attached.
• Ships at approximately 0.23 lb.

Frequently Asked Questions

Why is this pre-dimpled? The dimples give a gunsmith an exact reference point to pin and weld the device to a 14.5-inch barrel, bringing total barrel length up to the legal 16-inch rifle minimum.

Is this muzzle brake itself an NFA item? No. It’s an ordinary Title I muzzle device; only a suppressor mounted to it would be the NFA-regulated item.

Buy the Gemtech 7.62 ETM Muzzle Brake, 5/8-24

An ETM muzzle brake is the correct interface for reliable alignment with a Gemtech ETM suppressor. Order it from our Lubbock, TX gun shop for fast, insured shipping.