Aero Precision AR15 Standard Lower Parts Kit Black. Mil-spec dimensions and coating ensure the highest quality and correct component interface. Our upgraded Enhanced Lower Parts Kit features a Magpul MOE Grip and Aero Precision Billet Trigger Guard. Includes: Takedown/pivot Spring Takedown/pivot detent Trigger/hammer pin Takedown pin Pivot pin Bolt Catch Bolt Catch Spring Bolt Catch buffer Bolt catch roll pin Safety Selector Safety Selector spring Safety Selector detent Buffer retainer Buffer retainer spring Billet trigger guard Trigger guard roll pin Magpul MOE pistol grip Pistol grip screw Pistol grip lock washer Trigger spring Hammer spring Disconnector spring Magazine catch body Magazine catch spring Magazine catch button Hammer Trigger Disconnector Specifications for Aero Precision AR15 Standard Lower Parts Kit: Manufacturer: Aero Precision Color: Black Gun Model: AR-15 Weight: 7.5 oz Condition: New Country of Origin: USA Package Contents: Aero Precision AR15 Standard Lower Parts Kit The Aero Precision AR15 Standard Lower Parts Kit is a quality addition to the Aero Precision lineup. For more great deals on AR15 Lower Parts by Aero Precision please browse our Aero Precision Gun Parts page. Aero Precision APRH100029: AR15 Standard Lower Parts Kit Black