Build a dependable AR-15 lower with the BATTLEARMS Enhanced Complete Lower Parts Kit. This thoughtfully assembled kit combines essential mil-spec fire-control components with upgraded controls and a customizable grip for a cohesive, feature-rich setup.
Enhanced bolt catch, safety selector, magazine catch, magazine release, takedown and pivot pins, and adjustable tactical grip bring refined handling details to your lower receiver. The included mil-spec trigger, hammer, disconnector, springs, detents, pins, and hardware provide the remaining core components for assembly.
- Enhanced bolt catch: Lightweight 8620 heat-treated cast steel with a raised T-shaped heel and serrated surfaces for positive control.
- Single-sided safety selector: 0°–90° semi-automatic operation, diagonal serrations, and compatibility with mil-spec dimensioned AR-15 lower receivers.
- Magazine controls: One-piece fluted 8620 steel magazine catch pairs with a CNC-machined 7075-T6 aluminum release button featuring a solid V-shaped face.
- Adjustable tactical grip: Set the angle to 17, 25, or 33 degrees using the included hex key; textured finger grooves and a ribbed backstrap support a comfortable hold.
- Enhanced takedown and pivot pins: Low-profile heads, extended tips, and shaped gripping surfaces aid access; the pivot pin includes a magnetic-assist installation system.
- Complete core components: Includes a mil-spec trigger, hammer, disconnector, springs, detents, trigger guard, roll pin, and hammer and trigger pins.
- Built for compatibility: Enhanced pins fit AR-15, M16, and M4 lower receivers with mil-spec .250-inch pin holes; magazine release components fit compatible mil-spec setups.
- Made in the USA: The enhanced safety selector is proudly manufactured domestically.
Bring practical upgrades and essential lower components together with the BATTLEARMS Enhanced Complete Lower Parts Kit. Confirm receiver specifications and follow safe, qualified installation procedures.
