This is a complete lower build kit for AR-10 and LR-308 platforms. It includes a serialized lower receiver, mil-spec lower parts kit with fire control group and grip, heavy-duty buffer tube, chrome-silicon buffer spring, receiver end plate, and an adjustable Special Operations stock. The lower receiver is not included. You'll need to source that separately to complete the build.
This kit ships with an adjustable Special Operations stock that supports multiple positions for different shooting scenarios. The glass-filled polymer construction provides durability while the QD sling mount allows quick attachment and removal. The rubberized buttpad reduces felt recoil and improves stability during extended shooting sessions.
The heavy-duty buffer tube uses carbine-length dimensions and pairs with a chrome-silicon, moly-plated buffer spring engineered for long service life. The spring is stress-relieved to handle the cycling demands of larger calibers like 308 Winchester. The 3.7 oz collapsible stock buffer maintains reliable cycling across the platform.
The included mil-spec lower parts kit contains the fire control group, hammer, disconnector, selector, and all required pins and springs. The A2 grip is also included. These components are standard mil-spec configuration, ensuring compatibility with most upper assemblies designed for AR-10 and LR-308 platforms.
The US Tactical receiver end plate uses phosphate finish for corrosion resistance. The lower receiver itself features anodized black finish for durability. Both finishes are standard mil-spec specifications designed for long-term use and field conditions.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.
Platform: AR-10 / LR-308
Lower Finish: Anodized
Lower Color: Black
Country of Origin: USA
Serialized: Yes
Lower Parts Kit — Model: LR-308 Mil-Spec Lower Parts Kit
Lower Parts Kit — Platform: AR-10
Lower Parts Kit — Includes FCG: Yes
Lower Parts Kit — Includes Grip: Yes (Mil-Spec A2 Grip, Black)
Buffer Tube — Model: Mil-Spec Heavy-Duty 6-Position Buffer Tube
Buffer Tube — Type: Carbine
Collapsible Stock Buffer — Model: LR-308 Collapsible Stock Buffer
Collapsible Stock Buffer — Weight: 3.7 oz
Collapsible Stock Buffer — Platform / Classification: AR-10 / LR-308 — Carbine
Receiver End Plate — Brand/Model: US Tactical — Mil-Spec Receiver End Plate (Phosphate finish, Black)
Buffer Spring — Brand: Spring Dynamics
Buffer Spring — Specs: Chrome-silicon, moly-plated, stress-relieved, extra-power (long service life)
Stock — Style / Type: Rifle Stock / Adjustable (Mil-Spec carbine compatible)
Stock — Material: Glass-Filled Polymer
Stock — Sling Mount / Style: Yes — QD Mount, Sling Loop
Stock — Buffer Tube Compatibility: Mil-Spec
Stock — Adjustable: Yes
Stock — Color: Black
Stock — Rubberized Buttpad: Yes
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