Rainier Arms Mini XT Compensator AR15 (CW) Steel Alloy Made (Isonite QPQ finish) 14 mm clockwise, you can fit it on most of your AEG Feature: 100% Inspection ensure precise bore alignment resulting in enhanced accuracy and maximum performance. A high strength corrosion-resistant aerospace alloy, and hardened surface finishing provide the highest level of durability. This Compensator Licensed by PTS Length: 36.50mm Diameter: 21.84mm