Description
MPN: ARM2961-BLK
Features:
- Plan B / Atlas Ready: No additional adapter required—the brake itself interfaces with your suppressor
- No Crush Washer Needed: 360° port geometry means no timing—just torque to spec and go
- Minimalist, Rugged Host: Purpose-built as a slim, lightweight suppressor mount that keeps length and weight down while maximizing retention
- Compact, Low-Profile: Micro form factor adds control without extra length or snag risk
- Hard-Use Finish: QPQ black nitride for heat, wear, and corrosion resistance
- Made in the USA: Backed by a lifetime warranty
Specifications:
- Caliber: 5.56 NATO / .223 Rem.
- Material: Steel
- Finish: Black Nitrite
- Weight: 1.98 oz.
- Length: 1.73"
- Outer Diameter: 0.9"
- Bore Diameter: 0.26"
- Thread: 1/2"-28
Compatibility:
- .223/5.56 barrel with 1/2"-28 thread pitch
- Plan B Mounting Systems:
- Rearden Atlas
- Diligent Defense Zilch
- Other Plan B compatible mounts
Includes:
- 1x Armaspec 5.56 Catacomb Muzzle Brake with Plan-B Outer Threads
Details:
Looking for a muzzle brake that keeps the rifle flat and also lets you run a can—without stacking extra parts? The Armaspec Catacomb Micro Muzzle Brake does both. Its body integrates a taper-and-thread interface so a Plan-B / Atlas–style suppressor mounts directly to the brake. No additional adapter, no added length you don’t need—just a clean, short muzzle that’s ready whether you’re shooting bare or going quiet.
Integrated Plan-B / Atlas Interface
By building the taper and threads into the brake itself, Catacomb removes a whole layer of hardware. Your suppressor threads straight onto the brake, maintaining a rigid, repeatable seat while keeping the front end compact. Fewer parts mean fewer variables—and fewer chances for tolerance stacking to creep in.
360° Porting, No Timing Required
Catacomb vents in a full circle around the body, so there’s nothing to clock during install. Seat it against the shoulder, torque to spec, and you’re done—no shims, no crush washer, no guesswork. On the gun, the circular porting smooths impulse and tamps down movement without dumping blast to one side of the firing line.
Micro Footprint, Built to Live at the Muzzle
This is a true micro-profile brake: minimal length, minimal weight, and a slim nose that won’t snag on bags, barricades, or tight cases. The finish is built to handle heat, carbon, and weather, so it stands up to regular range time and field use without demanding special care.
Who It’s For
Shooters who want recoil control and suppressor readiness—minus the bulk and hassle of extra adapters—will appreciate Catacomb’s modern, minimalist approach. It keeps your rifle tidy, tames movement, and streamlines your QD workflow into one small, purpose-built piece.
