The CMMG A2 Compensator (brand part no. 55DA5EB) is a steel muzzle device built to the classic A2 pattern for AR-15 rifles chambered on standard 1/2×28 threads. The vented A2-style port design directs gas to help manage muzzle rise, and the compensator threads directly onto a standard AR-15 barrel without an adapter. It is a proven, no-frills muzzle device design for shooters who want reliable, familiar performance on a standard AR-15 build.

Key Specifications

• Machined from steel for durability under sustained firing.
• Threads onto 1/2×28 muzzle threads, the standard AR-15 pattern.
• Built to the classic A2 compensator pattern with vented ports.
• Installs by direct thread-on, with no adapter required on standard AR-15 barrels.
• Sized specifically for the AR-15 platform.

Frequently Asked Questions

What thread pattern does this use? Standard 1/2×28, the common AR-15 muzzle thread.

What is this compensator made from? Steel, for durability under repeated firing.

Does it need an adapter to install? No, it threads directly onto a standard 1/2×28 AR-15 barrel.

Buy the CMMG A2 Compensator for AR-15

Finish your AR-15 build with a proven, factory-pattern muzzle device. Order the CMMG A2 Compensator from CMMG in our AR muzzle devices selection, shipped fast from our Lubbock, Texas gun shop.