Description
MPN: ARM2961-BLK
Features:
Plan B / Atlas Ready: No additional adapter requiredthe brake itself interfaces with your suppressor
No Crush Washer Needed: 360° port geometry means no timingjust 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 canwithout stacking extra parts? The Armaspec Catacomb Micro Muzzle Brake does both. Its body integrates a taper-and-thread interface so a Plan-B / Atlasstyle suppressor mounts directly to the brake. No additional adapter, no added length you dont needjust a clean, short muzzle thats ready whether youre 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 variablesand fewer chances for tolerance stacking to creep in.
360° Porting, No Timing Required
Catacomb vents in a full circle around the body, so theres nothing to clock during install. Seat it against the shoulder, torque to spec, and youre doneno 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 wont 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 Its For
Shooters who want recoil control and suppressor readinessminus the bulk and hassle of extra adapterswill appreciate Catacombs modern, minimalist approach. It keeps your rifle tidy, tames movement, and streamlines your QD workflow into one small, purpose-built piece.
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