The Griffin Armament Gate-Lok Hammer Comp 22 1/2x28 is a compact, purpose-built muzzle device designed to interface seamlessly with Griffin’s GATE-LOK and M4SD series suppressors. Machined from heat-treated 17-4PH stainless steel and finished in a durable Nitride QPQ treatment, it offers a clean profile with generous ports and a sacrificial baffle to help reduce recoil while protecting your suppressor from excess blast and erosion.

This Hammer Comp is ideal for shooters running 5.56 or .22-caliber carbines who want better muzzle control without adding unnecessary bulk. Its tuned compensating slots help keep the rifle flatter during rapid strings at the range or in training, while the integral over-travel stop and included shim set make installation and timing straightforward. Paired with Griffin’s reputation for precise machining and thoughtful design, this muzzle device is a practical upgrade for modern AR platforms.

Key Features:

• Manufacturer: Griffin Armament
• Model: Gate-Lok Hammer Comp XHP556HC
• Caliber: .22 / 5.56mm carbines
• Condition: New
• Finish Color: Black Nitride QPQ
• Length: 1.75 inches
• Width: 0.863 inches diameter
• Weight: 2.4 ounces
• Unique Features: GATE-LOK / M4SD suppressor interface, sacrificial baffle, tuned compensating slots, integral over-travel stop, includes shim set