CMMG Lower Parts Kit .308 Black AR-10
CMMG
$79.69
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CMMG
CMMG Lower Parts Kit .308 Black AR-10
The CMMG Lower Parts Kit (LPK) for .308 delivers everything you need to complete a high-quality Mk3 or LR-308 platform lower receiver build, with mil-spec components you can trust for reliability and longevity.
- Includes all essential components to fully populate your lower receiver
- Compatible with CMMG Mk3 lowers and most standard LR-308 type lowers
- All parts meet or exceed mil-spec tolerances for consistent performance
- Pairs seamlessly with a CMMG buttstock kit to complete your lower group
- Precision-manufactured by CMMG, a trusted name in AR-platform components
- Ideal foundation for a dependable .308 Winchester semi-automatic build
Who This Is For
This LPK is the perfect choice for rifle builders assembling a .308/7.62x51mm semi-automatic lower from scratch, whether you're a seasoned AR builder looking for reliable mil-spec internals or a first-time builder wanting a complete, no-guesswork parts solution for your Mk3 or LR-308 compatible lower receiver.
Specifications
| Brand | CMMG |
|---|---|
| Model | LPK 308 / 38CA6DC |
| Caliber Compatibility | .308 Winchester / 7.62x51mm NATO |
| Platform | CMMG Mk3 & LR-308 Type Lowers |
| Specification Standard | Mil-Spec or Better |
| Finish | Black |
| Kit Contents | Full Lower Parts Kit (trigger, hammer, pins, springs, and more) |
| Buttstock Included | No (sold separately) |
| Country of Origin | USA |
Frequently Asked Questions
What parts are included in the CMMG LPK for .308?
This lower parts kit includes all the essential internal components needed to populate a .308 lower receiver, including the trigger group (trigger, hammer, disconnector), trigger and hammer pins, springs, safety selector, magazine catch, bolt catch, pistol grip hardware, and related small parts. A buttstock or buffer kit is not included and must be purchased separately to complete the lower group.
Will this LPK fit any LR-308 lower receiver, or only CMMG lowers?
CMMG designed this kit primarily for their Mk3 platform lowers, but it is also compatible with most standard LR-308 type lower receivers from other manufacturers. LR-308 is not as universally standardized as the AR-15 platform, so it's always a good idea to verify compatibility with your specific lower receiver before purchasing. When in doubt, contact Goodland Guns or CMMG directly for confirmation.
Do I need any special tools to install this lower parts kit?
Installing an LPK on a .308 lower receiver requires basic AR-platform armorer's tools, including a lower vise block, punch set, hammer, and optionally a trigger guard roll pin punch. The process is similar to assembling an AR-15 lower, though some dimensions on .308-platform lowers may differ slightly. Builders new to the process are encouraged to consult an armorer's guide or have the kit installed by a qualified gunsmith.
