Expo Arms Mil-Spec Enhanced Builder AR-15 Lower Parts Kit

The Expo Arms Enhanced AR-15 Builder Lower Parts Kit gives a stripped lower a Mil-Spec foundation, including the small parts, pins, and springs needed for a complete build. The enhancements over the standard kit are an ambidextrous safety selector, a steel magazine release button and pins and detents that have been nitrided. This version leaves the pistol grip, fire control group, and trigger guard for the builder to choose.

Kit Includes:

• Ambidextrous safety selector with spring and nitrided detent
• Bolt catch with roll pin, spring, and nitrided plunger
• Magazine catch with spring and steel release button
• Nitrided takedown and pivot pins with springs and nitrided detents
• Nitrided buffer retainer pin with spring

Every component is manufactured to Mil-Spec dimensions for drop-in compatibility with standard AR-15 lower receivers from any manufacturer, leaving the pistol grip, fire control group, and trigger guard as the builder's choice. This kit also works well as a spare-parts supply for field or range repairs.

Expo Arms manufactures Mil-Spec AR-15 components in the United States, backed by a Limited Lifetime Warranty against manufacturer defects, material or workmanship problems, and normal wear and tear.