AR10 mil-spec Lower Receiver Parts Kit

Complete your .308 or 6.5 Creedmoor build with the AR10 mil-spec Lower Receiver Parts Kit from Miami Shooters Supply. This is the essential collection of small parts you need to assemble a functional lower receiver for your AR-10 or LR-308 platform rifle. Designed to meet military specifications for reliability, this kit provides everything except the receiver itself, buffer system, and stock. We ship fast so you can get your build on the bench without delay.

Key Features

• Includes all necessary springs, detents, pins, and the fire control group for a complete lower assembly.
• Mil-spec components ensure consistent performance and reliable interchangeability with other mil-spec AR10 parts.
• Features a standard single-stage trigger, hammer, and disconnector for a familiar, crisp pull.
• All small hardware, including the bolt catch, magazine catch, pivot and takedown pins, and selector detents, is present and accounted for.
• Precision-machined from quality materials for a proper fit and long-term durability under recoil.

Built For

This kit is built for the builder who values correctness and reliability. It’s the go-to choice for assembling a new AR-10 pattern lower from a stripped receiver or for replacing worn-out components in an existing rifle. Whether you’re building a precision long-range platform or a dependable battle rifle, this parts kit provides a solid foundation.

Specifications

• Compatibility: Designed for DPMS pattern AR-10 / LR-308 mil-spec lower receivers.
• Caliber: For use with .308 Winchester, 6.5 Creedmoor, and similar short-action large-frame calibers.
• Trigger: Standard mil-spec single-stage fire control group included.
• Finish: Typically phosphate or nitride coated for corrosion resistance.
• Includes: Trigger, hammer, disconnector, springs, detents, pivot/takedown pins, bolt catch, and magazine catch assembly.

FAQ

Is this kit compatible with any AR-10 lower?
This is a mil-spec kit designed for the common DPMS pattern AR-10 lower receiver. Always confirm compatibility with your specific lower receiver model, as some platforms like Armalite may use different parts.

Does this parts kit include a pistol grip or buffer tube?
No. This kit includes the internal small parts and fire control group only. You will need to purchase a pistol grip, buffer tube, buffer, buffer spring, and stock separately to complete your lower receiver assembly.