Gemtech 5.56 ETM Muzzle Brake | 1/2-28 | 13816

The Gemtech ETM 5.56 muzzle brake (model 13816) is a compact 3-port device engineered to align with ETM-equipped suppressors. It measures approximately 2.375 inches long and is supplied pre-dimpled for pin-and-weld installation to a 14.5″ barrel. The ETM geometry is intended to reduce the risk of carbon locking when a suppressor is attached and to provide repeatable suppressor indexing. It threads on via standard 1/2-28 for compatibility with common 5.56 platforms.

Typical applications include use on suppressor-equipped precision or competition rifles and on range/target platforms where consistent suppressor alignment is required.

Product Specifications

• The manufacturer is Gemtech.
• The model is 5.56 ETM.
• The manufacturer part number is 13816.
• The caliber is listed as 5.56 NATO.
• The mount type is 1/2-28.
• The length is 2.375 inches.
• The barrel features are listed as 3-Port.
• The product is supplied pre-dimpled for pin-and-weld to a 14.5-inch barrel.
• The finish is listed as Black.
• The UPC is 022188894752.

Compact and purpose-built for use with ETM suppressors, this muzzle brake simplifies achieving consistent alignment while maintaining a low-profile footprint. Its pre-dimpled design expedites permanent installation on a 14.5″ barrel and the three-port layout is practical for shooters who prioritize repeatable indexing for suppressed use. For operators and competitors using ETM-equipped suppressors, this brake delivers the functional features needed for long-term, reliable alignment.