Geissele Automatics Lower Parts Kit - No Grip & Fire Control Group

Geissele Automatics Lower Parts Kit - No Grip & Fire Control Group

Whether you're assembling a new rifle or upgrading an existing lower, this kit delivers the trusted performance Geissele is known for.

Designed to meet and exceed Mil-Spec standards, this lower parts kit includes 18 essential components required to complete your AR-15 lower receiver—excluding the fire control group, giving you the flexibility to pair it with your preferred trigger system. At the heart of this kit is Geissele’s Posi-Snap safety system, paired with an improved safety detent, delivering crisp, positive engagement you can feel every time you switch between safe and fire.

Built for shooters who demand durability and refined performance, each component is manufactured to exacting standards for consistent fit and function. Whether you're a professional armorer or a DIY enthusiast, this kit ensures your rifle operates smoothly and reliably under any conditions.

Complete Lower Parts Kit
Includes 18 essential components needed to complete or rebuild an AR-15 lower receiver (excluding trigger group).

No Fire Control Group
Allows customization with your preferred trigger system for tailored performance.

Posi-Snap Safety System
Provides crisp, tactile feedback for confident engagement between safe and fire positions.

Improved Safety Detent
Enhances durability and ensures smooth, positive selector operation.

Mil-Spec Compatibility
Designed to fit standard AR-15 lower receivers with consistent reliability.

Precision Manufacturing
Built to tight tolerances for proper fit, function, and long-term durability.

Ideal for Builds & Upgrades
Perfect for custom builds or replacing worn internal components.

Specifications

• Product Type: Lower Parts Kit
• Platform Compatibility: AR-15
• Fire Control Group Included: No
• Number of Components: 18
• Safety System: Posi-Snap safety with improved detent
• Grip Included: No
• Material Standard: Mil-Spec components
• Use Case: Lower receiver assembly or rebuild
• Finish: Not specified