Product Description The Griffin Armament Dual-Lok Mini Brake (DLM556) is a compact, high-performance muzzle device engineered for 5.56/.22 caliber firearms with 1/2x28 threading. Built from tough 17-4PH stainless steel and coated in a wear-resistant QPQ Nitride finish, this minimalist brake integrates directly with the Griffin Armament Dual-Lok quick-detach (QD) suppressor mounting system. Sixty precisely machined mounting grooves paired with the mount&';s two out-of-phase locking positions deliver 120 effective locking positions total, guaranteeing a tightly secured suppressor with consistent point-of-impact (POI) retention. At only 1.42 inches in overall length and 2.3 ounces, the DLM556 adds minimal weight and profile to the host firearm compared to most competing suppressor mounts. Integrated compensating ports actively reduce muzzle climb and felt recoil, while a sacrificial baffle protects the suppressor&';s internal components to extend its service life. A shim set is included for precise timing during installation. Product Highlights 120 Effective Locking Positions: 60 machined grooves doubled by two out-of-phase locking collar positions ensure a secure, tightly locked suppressor attachment every time. Premium 17-4PH Stainless Steel Construction: QPQ Nitride finish delivers outstanding corrosion resistance and long-term durability under heavy use. Sacrificial Baffle Design: Protects the suppressor&';s internal baffle stack to significantly extend suppressor service life. Compensating Ports: Strategically positioned ports reduce muzzle climb and felt recoil, improving accuracy and faster follow-up shots. Ultracompact and Lightweight: At 1.42" overall length and just 2.3 oz, the DLM556 adds minimal weight and length; shim set included for proper timing. Specs Brand: Griffin Armament Model: Dual-Lok Mini Brake MPN: DLM556 UPC: 689396837980 Type: Muzzle Brake Caliber: 5.56 / .22 Thread Pattern: 1/2x28 Material: 17-4PH Stainless Steel Finish: QPQ Nitride Color: Black Overall Length: 1.42 inches Diameter: 1.07" (grooves), 0.93" (unit) Weight: 2.3 oz Includes: Shim Set for Timing Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>