Details Upgrade your lower receiver with an Aero Precision Billet Trigger guard. Our new design installs with 3 button head screws (no roll pins needed) and features a sleek profile and hard engraved Aero Precision "A" logo. Features: Matte black hard-coat anodized Mil 8625 Type 3 Class 2 Machined from 6061 billet aluminum Works with standard AR15 and AR10 components Now includes hard engraved Aero Precision "A" Logo Includes 3 button head screws for a clean installation. No roll pins needed. *5/64th hex wrench needed for installation, not included.