Rise Armament Lower Parts Kit – AR-15 Complete Assembly

The Rise Armament Lower Parts Kit provides all the components needed to complete an AR-15 lower receiver, excluding the trigger group, pistol grip, and buttstock. This kit includes the bolt catch, magazine release, safety selector, takedown pins, and all associated springs and detents required for a functional lower assembly. Designed for builders who prefer to select their own trigger and furniture, this LPK covers the essential mechanical components.

Manufactured from mil-spec materials with a standard phosphate finish on steel components, this kit installs using basic armorer's tools—no professional gunsmithing required, though attention to small parts and spring tension is essential during assembly. All components are machined to military specifications for reliable fit in standard AR-15 lower receivers. The kit includes a trigger guard assembly that can be installed in either pinned or screw-mounted configuration depending on receiver type.

• Part Type: Lower Parts Kit (No Trigger/Grip/Stock)
• Compatible Firearms: AR-15 Pattern Rifles
• Material: Mil-Spec Steel
• Finish: Phosphate (Steel Components)
• Installation: Drop-In (Armorer Tools Required)
• Includes: Bolt Catch Assembly, Magazine Release Assembly, Safety Selector, Takedown Pins, Pivot Pin, Buffer Retainer, Trigger Guard, Springs, Detents