Geissele Automatics Ultra Duty Lower Parts Kit – AR-15

The Geissele Ultra Duty Lower Parts Kit provides all the essential components needed to complete an AR-15 lower receiver, minus the trigger group and pistol grip. This kit is designed for builders who already have a preferred trigger and grip, or who want to install those components separately. Geissele engineers these parts to the same exacting standards as their precision triggers, ensuring reliable function and proper fit.

Manufactured from mil-spec materials with a Desert Dirt Color (DDC) finish on select components, this kit includes the bolt catch, magazine release, and safety selector with their respective springs and detents. All parts are made in the USA. Installation requires standard AR-15 armorer's tools and basic mechanical aptitude—no professional gunsmithing required for most builders, though detent installation can be tricky for first-timers.

• Part Type: Lower Parts Kit (LPK) without trigger or grip
• Compatible Firearms: AR-15 platform lower receivers
• Material: Mil-spec steel components
• Finish: Desert Dirt Color (DDC) on select parts
• Installation: Drop-in with standard tools; detent pins require care
• Includes: Bolt catch assembly, magazine release assembly, safety selector assembly, buffer retainer, springs, and detents (does not include trigger group or pistol grip)