
Geissele Automatics
The Geissele Ultra Duty Black Lower Parts Kit w/NO Grip 05-435B is a complete lower parts kit for compatible AR-15, M4, and M16 platforms. It includes the essential springs, detents, pins, and controls needed to complete a lower receiver, along with several Geissele-designed components. A pistol grip is not included, giving users the flexibility to select their preferred grip separately.
Several of the kit's components are made from stainless steel, providing corrosion resistance and durable construction. The kit includes Geissele's Maritime Bolt Catch, which features an enlarged surface for easier access, along with an Ambidextrous Super Configurable Safety that provides safety control from either side of the receiver.
The Ultra Precision Trigger Guard is machined from billet 7075-T6 aluminum and is shaped to provide a solid interface with the lower receiver. Checkered takedown and pivot pins add a textured surface for handling, while the textured magazine release button provides a defined contact area.
The Geissele Ultra Duty LPK also includes the necessary springs and detents used with the included lower receiver components. The parts are supplied as a complete set, making it suitable for new lower receiver builds as well as replacement or rebuild projects.
Finished in black, the Geissele Lower parts kit brings together the company's controls and small components in a consistent configuration. The kit focuses on the parts that have a direct role in the operation and setup of a compatible AR-platform lower receiver, without including a pistol grip.
For an AR-15/M4/M16 build requiring a complete set of lower receiver components, the Geissele LPK provides the essential hardware along with Geissele-specific controls such as the Maritime Bolt Catch, Ambidextrous Super Configurable Safety, and Ultra Precision Trigger Guard.
05-435B-Geissele
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05-435B