Details
CMMG Lower Parts Kit | AR-15 | Gunbuilder's Kit | Safety Selector, Springs, Pins | No FCG or Grip
The CMMG Lower Parts Kit provides essential components for AR-15 lower receiver assembly, delivering the core parts needed to complete your build. This Gunbuilder's Kit includes the safety selector, bolts, springs, pins, and other necessary hardware for reliable lower function. Constructed from durable materials engineered for long-term performance, this kit ensures proper fitment and operation with standard AR-15 platforms. Notably, this kit does not include a fire control group or pistol grip, allowing builders to select their preferred trigger assembly and grip to match their shooting style and application. Designed for straightforward installation, this comprehensive parts selection supports custom builds with quality components you can trust.
Key Features
- Complete Hardware Selection: Includes safety selector, bolts, springs, pins, and essential components for lower assembly
- No FCG or Grip: Excludes fire control group and pistol grip for builder customization flexibility
- Durable Construction: Quality materials ensure reliable function and longevity across thousands of rounds
- Standard AR-15 Compatibility: Designed for seamless fitment with mil-spec lower receivers
- Lightweight Design: Compact kit facilitates easy installation and handling during assembly
Perfect For
- Custom rifle builders who want to select their own trigger group and grip components
- Gunsmiths assembling client builds with specific fire control group requirements
- Shooting sports enthusiasts building personalized AR-15 platforms from the ground up
- Builders upgrading or replacing worn lower parts with quality OEM components
Essential Components Included
This Gunbuilder's Kit provides all the small parts that transform a stripped lower receiver into a functional assembly foundation. The safety selector, magazine catch assembly, bolt catch components, takedown and pivot pins, trigger guard assembly, springs, and detents are all included—everything except the fire control group and grip. This selection ensures you have the critical hardware for proper lower function while maintaining the freedom to choose premium triggers and ergonomic grips that suit your specific shooting discipline or personal preferences.
Builder Customization Freedom
By excluding the fire control group and pistol grip, CMMG gives builders control over two of the most personal aspects of rifle configuration. Whether you're installing a precision two-stage trigger for long-range work, a crisp single-stage for competition, or selecting a grip angle and texture that fits your hand size and shooting style, this kit doesn't lock you into components you might replace anyway. This approach reduces waste and allows you to allocate your budget toward the trigger and grip that truly matter to your shooting experience.
Quality Materials for Reliable Function
CMMG constructs this parts kit from materials selected for durability and consistent performance across the service life of your rifle. Properly manufactured springs maintain tension through thousands of cycles, pins fit with appropriate tolerances to prevent walking or excessive play, and the safety selector operates with positive detents for confident manipulation. These quality standards ensure your lower assembly functions reliably whether you're building a recreational range rifle, competition gun, or serious defensive platform.
Straightforward Installation
The kit's design facilitates assembly for builders with basic gunsmithing tools and knowledge. Each component fits standard AR-15 lower receivers without modification, and the included parts work together as an integrated system. For builders new to AR-15 assembly, this kit provides an opportunity to learn the platform's mechanical operation while creating a personalized rifle. Experienced gunsmiths will appreciate the quality and completeness of the hardware selection for efficient build completion.
Follow safe handling practices and manufacturer instructions for assembly and installation. Verify proper fitment and function of all components before live fire. This kit requires separate purchase of fire control group and pistol grip to complete lower assembly. Ensure compliance with all applicable federal, state, and local laws.
