Brownells AR15 High Standard Lower Receiver Parts Kit. Convenient kit contains all the parts needed to complete a stripped, small-pin, semi-auto lower receiver. Saves time and money—no need to hunt down each item individually. These high-quality parts are manufactured to precise tolerances in accordance with MIL-STD 105D to ensure correct fit in a mil-spec receiver. Includes complete trigger/hammer group with precision-ground engagement surfaces for a smooth, clean trigger pull and crisp release. Aluminum triggerguard with pre-installed detent pin resists impact and won’t crack in cold weather. High-impact polymer pistol grip is original A2 style with single finger groove on the front, vertical serrations on the backstrap, and checkered panels on the sides. Add the receiver extension/buttstock system of your choice, and your rifle’s bottom half is complete.
Steel, matte black finish. Grip - injection-molded polymer, black. Triggerguard – aluminum, anodized, matte black. Kit includes trigger, hammer, disconnector, safety selector lever, bolt catch, magazine catch, magazine button, pistol grip, front pivot pin, rear takedown pin, buffer retainer, .154” diameter hammer and trigger pins, plus all other necessary pins, detents, and springs.