The CAT Spooky2 A1 Muzzle Brake is a 5.56mm brake that threads onto a 1/2×28 barrel and doubles as the mounting point for a CAT silencer. CAT makes it from 4140 steel with a Black Nitride finish, and it comes with a shim kit. It adds 1.19-inch of length to the muzzle and weighs 2.5 oz. For an AR-15 shooter who wants recoil control now and a clean suppressor interface later, the A1 covers both jobs. CAT also sells a 7.62mm Spooky2 A2 for 5/8×24 barrels.

Key Specifications

• The caliber rating is 5.56mm, matched to the 1/2×28 barrel thread.
• The barrel attachment is 1/2×28, the standard thread for 5.56mm rifles.
• Overall length is 1.81-inch, so the brake stays compact at the muzzle.
• Weight is 2.5 oz, light enough to keep a carbine balanced.
• A shim kit is included, which gives you the shims needed to set the brake up on the barrel.

Frequently Asked Questions

Does the Spooky2 A1 come with shims? Yes. CAT includes a shim kit with the Spooky2 muzzle brake.

What thread and caliber is the Spooky2 A1? The A1 uses a 1/2×28 thread and is rated for 5.56mm. The 7.62mm Spooky2 A2 is a separate model with a 5/8×24 thread, so choose the one that matches your barrel.

Buy the CAT Spooky2 A1 Muzzle Brake, 5.56mm 1/2×28

The Spooky2 A1 pairs a working muzzle brake with the mounting interface a CAT silencer needs, in a light 4140 steel package. See more AR muzzle devices from our Lubbock, Texas gun shop, or order this one for fast, insured shipping.