CMMG Zeroed Lower Parts Kit – MK3 Lower Receiver Parts Kit with Ambi Safety Selector – Fits AR10 – Black (38CA62B) – UPC 810097502321
Product Overview
The CMMG Zeroed Lower Parts Kit (MK3) is engineered for AR10 enthusiasts who demand precision, durability, and versatility. This all‑black lower receiver parts kit includes a fully zeroed lower receiver, an ambidextrous safety selector, and a complete set of high‑quality components designed to streamline installation and enhance the reliability of your AR10 platform.
Whether you are building a new rifle from the ground up or upgrading an existing lower, this kit provides everything you need for a flawless, drop‑in installation. The kit’s components are manufactured from aircraft‑grade aluminum and feature a black anodized finish for superior corrosion resistance and a sleek, tactical appearance.
Key Features & Benefits
- Zeroed Lower Receiver: Factory‑tested for perfect alignment, eliminating the need for post‑assembly adjustments.
- Ambidextrous Safety Selector: Fully reversible safety for left‑ or right‑hand shooters, ensuring safe operation under any circumstance.
- Precision Machined Components: CNC‑machined lower receiver and parts deliver consistent tolerances and long‑term durability.
- Black Anodized Finish: Provides a non‑reflective, wear‑resistant surface that stands up to harsh environments.
- Complete Parts Kit: Includes lower receiver, trigger group, hammer, disconnector, safety selector, bolt catch, magazine catch, pivot pins, and all necessary springs and pins.
- Fits AR10 Platforms: Designed to work with all standard AR10 uppers, ensuring broad compatibility across the market.
- Easy Installation: All components are pre‑drilled and ready for a quick, tool‑minimal build.
- Enhanced Reliability: The kit’s high‑quality hardware reduces wear and improves the overall life of your firearm.
Technical Specifications
| Item | Specification |
|---|
| Model | CMMG Zeroed Lower Parts Kit – MK3 |
| Part Number | 38CA62B |
| UPC | 810097502321 |
| Compatible Platform | AR10 (Standard 5.56×45mm/6.5mm/.308) |
| Material | Aircraft‑grade 7075‑T6 Aluminum |
| Finish | Black Anodized |
| Safety Selector | Ambidextrous, reversible |
| Included Components | Lower receiver, trigger group, hammer, disconnector, safety selector, bolt catch, magazine catch, pivot pins, springs, pins, and installation hardware |
| Weight (approx.) | 1.35 lbs (receiver only) |
Compatibility & Installation
This lower parts kit is fully compatible with any standard AR10 lower block and works seamlessly with CMMG’s own MK3 upper receivers. The kit is also compatible with aftermarket AR10 uppers that follow the standard AR10 dimensions. Installation requires only basic hand tools (e.g., torque wrench, hex drivers) and can be completed in under an hour by an experienced builder.
Installation Tips:
- Verify that the upper receiver is free of debris before assembly.
- Install the pivot pins first to ensure proper alignment of the trigger group.
- Fit the ambidextrous safety selector, setting the lever to your preferred side before tightening.
- Double‑check spring tensions and pin placements for a smooth trigger pull.
- Perform a function check: safe/ fire, bolt catch, and magazine release to confirm proper operation.
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Ready to Upgrade Your AR10?
Transform your rifle with the CMMG Zeroed Lower Parts Kit – MK3 and experience a flawless blend of precision, reliability, and tactical versatility. Add this premium lower receiver kit to your build today and enjoy the confidence that comes from using CMMG’s industry‑leading components.
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