Griffin Armament Taper Mount Hammer Comp — Black Stainless Steel (GATMHC556)

Upgrade muzzle control, reduce recoil impulse, and protect your taper-mount suppressor with the Griffin Armament Taper Mount Hammer Comp — a purpose-built compensator machined for durability and tuned for muzzle stability. Designed for taper-mount suppressor systems and optimized for small-bore applications, the GATMHC556 delivers hardened-steel performance in a compact, precision package. Griffin Armament+1

Product Snapshot

• Model: GATMHC556

• UPC: 791154081631

• Finish / Material: Black stainless (17-4PH stainless steel, QPQ/black finish options on some SKUs). Griffin Armament+1

• Thread Pattern: 1/2"-28 tpi (countersunk taper-mount shoulder). rkguns.com

• Overall Length (OAL): ~1.89–1.94" (from thread shoulder to front face, vendor-dependent spec). MidwayUSA+1

• Outer Diameter: ~1.08" (designed for .22-cal taper mounts). rkguns.com+1

• Intended Caliber / Use: .22 caliber / taper-mount suppressor interface (works with Griffin taper-mount silencers and compatible taper mounts). Griffin Armament+1

Why the Taper Mount Hammer Comp?

Griffin Armament engineered the Hammer Comp to do two jobs well: tune muzzle behavior for faster follow-ups and act as a sacrificial buffer between your firearm and suppressor. The device features two sacrificial baffles that absorb abuse and extend the service life of your suppressor, and slotted compensating geometry that redirects gas and stabilizes muzzle rise for improved shot-to-shot recovery. These aren’t cosmetic ports — they’re tuned slots and baffles designed around real suppressor and barrel harmonics. Griffin Armament+1

Precision Materials & Manufacturing

This comp is CNC-machined from heat-treated 17-4PH stainless steel, a high strength, corrosion-resistant alloy chosen for longevity under cyclic stress. Griffin’s manufacturing tolerances and heat-treat process ensure the Hammer Comp resists deformation and maintains thread concentricity — critical for reliable suppressor mounting and consistent point-of-impact. The black finish found on many listings provides additional corrosion resistance and a low-glare tactical appearance. Griffin Armament+1

Performance You Can Feel

• Reduced felt recoil and muzzle climb: The combination of sacrificial baffles and compensating slots yields noticeably quicker sight recovery during rapid strings of fire. MidwayUSA

• Protects your suppressor: The Hammer Comp acts as a wear surface so the expensive suppressor bore and baffles don’t take the brunt of first-impact gas and particulate. Griffin Armament

• Tuned for stability: Porting and geometry were designed to minimize torque and asymmetric gas forces that can shift POI. Classic Firearms

Fitment & Compatibility

The GATMHC556 uses industry-standard 1/2"-28 tpi threads with a countersunk taper shoulder to interface cleanly with Griffin taper-mount suppressors (RECCE, Optimus, Paladin, Sportsman, etc.) and other taper-mount systems that accept the 1/2-28 threaded taper adapter. It’s offered in a diameter and porting pattern tailored for .22 caliber and similar small-bore platforms; verify taper dimensions on your suppressor before purchase for perfect fitment. Griffin Armament+1

Durability & Serviceability

Griffin designed the Hammer Comp to be user-serviceable: the sacrificial baffle features can be replaced/serviced by qualified armorers or by swapping the comp if it becomes eroded after heavy use. Because it’s machined from 17-4PH, the unit offers long service life even under high round counts and high-temperature regimes typical of suppressed firing. Griffin Armament+1

Installation & Notes

• Install onto a cleaned, properly torqued 1/2-28 threaded barrel or taper mount; confirm shoulder seating for taper compatibility. MidwayUSA

• Use of a crush washer or shims is vendor-dependent — check Griffin’s taper-mount guidance or your suppressor manual for headspacing/installation details. MidwayUSA+1

• Always follow local laws and NFA regulations when mounting or using suppressors and related taper-mount equipment.

Who Should Buy This?

• Shooters who suppress small-bore platforms and want to preserve suppressor life. Griffin Armament

• Precision builds that require a concentric, hardened muzzle device with compensating attributes. Classic Firearms

• Owners of Griffin taper-mount suppressors looking for OEM-matched muzzle compensation and sacrificial protection. AR15Discounts

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Engineered for suppressor protection, built for durability, and tuned for improved muzzle control — the Griffin Armament Taper Mount Hammer Comp (GATMHC556) is a compact, high-quality solution for shooters who demand both performance and protection from their muzzle devices. Griffin Armament+1

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