The BattleComp 2.1 is made from heat treated stainless steel bar stock with a black MELONITE finish, the BattleComp 2.1 fits all barrels with 1/2 x 28 RH standard threads.
Compatible with the GemTech HALO and the AAC Omni. INCLUDING THOSE MODELS UTILIZING THE "BFA" GROOVE FOR THE LOCK-UP.
Specifically designed for 5.56 NATO and .223 Rem ammunition.
Shim kit included for optimized concentricity. Professional installation by competent gunsmith using Rocksett required for those using sound suppressors.