High speed modern design adds a unique flare Precision made part ensures superior quality Reinforced anodized coating adds a smooth finish Compatible with most AR15 series AEGs Lightweight build adds little to no weight to your AEG Highly compatible with Marui M4 version 2 gearboxes Built with a CNC 7075 high strength aircraft grade aluminum to resist wear In the Box 1X Trigger Specifications: Brand Retro ArmsBuild Aluminum (Dural) EN AW 7075 T651Compatibility Tokyo Marui and Most M4 AEGsWeight 4gColor Black California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov