Our M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.Don't forget to buy an Aero Precision M5 (.308) Lower Parts Kit. Our LPK is specifically designed to work with the M5 Lower Receiver and includes custom takedown and pivot pins as well as an extended magazine catch button.Features:Works with standard AR 308 components and magazinesRear takedown pin detent hole is threaded for a 4-40 set screwBolt catch is threaded for a screw pin (no roll pin needed)Integrated trigger guardSelector markings will work with 45, 60 or 90 degree safety selectorsAccepts Battle Arms Development short throw safety selectors, but will work with any standard selectorNo gap with aftermarket pistol gripsIncludes:Stripped M5 (.308) Lower Receiver in OD Green Cerakote (info on Cerakote Firearm Coating)Specifications:Shipping to FFL Dealer Required YesMade In America? YesPlatform M5Material Machined from 7075-T6 forged aluminumSelect Your Finish Magpul OD CerakoteMarkings "Cal Multi"Compatibility Works with standard AR 308 components and magazinesWeight(s) 12 ozAnodizing may have imperfections due to the manufacturing process. These are not covered by our or Aero Precision's warranty. This does not apply to non-cosmetic blemishes. For more information, please refer to Aero Precision's website Here.