GRIFFIN DUAL-LOK OTB 2 Port Muzzle Brake for 7.62mm Rifles

The Griffin Armament DUAL-LOK OTB 2 Port Muzzle Brake for 7.62mm rifles is a precision-engineered brake designed to tame recoil on magnum and large-caliber centerfire rifles. Built on Griffin's proven Paladin R platform, this muzzle brake delivers measurable recoil reduction while maintaining a clean, professional appearance—the kind of upgrade that transforms how a rifle feels behind the trigger without compromising its lines.

Constructed from 17-4 PH stainless steel and finished in black oxide, the DUAL-LOK OTB is built tough for serious shooters and hunters who demand durability under hard use. The two-piece welded design combines structural integrity with repeatable performance, and the reverse-porting geometry of the Paladin R braking system works to redirect gas flow in a way that actively suppresses muzzle rise and recoil energy. If you run a suppressor, this brake is also compatible with Griffin's SPR and RSTA silencers via the OTB interface, giving you a modular setup that doesn't sacrifice performance.

The brake comes threaded to industry-standard specifications—your choice of 1/2x28 or 5/8x24—and includes a shim set for precise bore alignment and fitment on various rifle configurations. At just over 4 ounces, it won't throw off your rifle's balance, and the polished welds and Griffin laser logo mark a brake that looks as good as it performs. This is no-nonsense equipment for shooters who care about precision and recoil control.

Key Features

• 2-port design with Paladin R reverse-porting geometry to reduce recoil and muzzle rise
• 17-4 PH stainless steel construction withstands high pressure and magnum calibers
• Black oxide finish resists corrosion in field conditions
• Compatible with Griffin SPR and RSTA silencers via OTB attachment interface
• Includes shim set for bore alignment and fitment across rifle platforms
• Available in 1/2x28 or 5/8x24 thread pitches

Specifications

Frequently Asked Questions

Is this muzzle brake compatible with Griffin suppressors?

Yes. The DUAL-LOK OTB interface is designed to work with Griffin's SPR and RSTA silencers, allowing you to add sound suppression while maintaining the same mounting system.

What thread pitch does my rifle need?

This brake is available in 1/2x28 or 5/8x24 threads. The 1/2x28 is common on lighter-recoiling cartridges and some ARs; the 5/8x24 is standard on larger magnum rifles. Verify your rifle's muzzle thread pitch before ordering.

Can I use this on a 7.62×54R or other rimmed cartridges?

This brake is rated for 7.62mm centerfire rifles (.308 Winchester and similar bolt-action and semi-auto platforms). If you're unsure whether your specific rifle is compatible, contact us with the exact make and model.

What is included in the box?

The brake ships with a shim set to help achieve proper bore alignment and fit on your specific rifle.