Wilson Combat AR-15 Stripped Billet Lower Receiver, Anodized

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Wilson Combat AR-15 Stripped Billet Lower Receiver

Precision matters when building or upgrading your AR-15. The Wilson Combat Stripped Billet Lower Receiver delivers a solid foundation for custom builds, combining tight tolerances with durable construction. Machined from 7075-T6 aluminum and hardcoat anodized, it’s built to withstand rigorous use while maintaining a clean, professional fit. Whether you’re assembling a competition rifle, tactical workhorse, or range-ready plinker, this lower ensures reliability without unnecessary bulk.

Key Specifications

• Material: 7075-T6 aerospace-grade aluminum
• Finish: Type III hardcoat anodized (matte black)
• Compatibility: Mil-spec AR-15 parts (trigger groups, buffer tubes, stocks)
• Weight: Lightweight billet design for balanced handling
• Markings: Ambidextrous selector markings, tension screw for upper fitment

Feature Breakdown

The Wilson Combat lower is CNC-machined from a single block of 7075-T6 aluminum, prioritizing strength over cast or forged alternatives. Billet construction allows tighter tolerances, reducing play between upper and lower receivers. The matte anodized finish resists wear and corrosion, even in humid or high-use environments.

Design details include an integrated trigger guard for a seamless look and reinforced take-down pin areas to prevent stress cracks. The threaded bolt catch roll pin hole simplifies installation compared to traditional drift-pin designs. A tensioning screw behind the pistol grip eliminates receiver wobble without shims or tape.

For builders who prioritize aesthetics, the receiver features clean lines with subtle Wilson Combat branding. The flared magwell aids reloads, while the ambidextrous selector markings accommodate left- or right-handed configurations. Machined indexing points help align jigs for drilling additional features like ambi controls.

This isn’t a range toy—the lower is engineered to pair with high-pressure calibers, including .223 Wylde and 300 BLK. The threaded rear detent channel secures springs more reliably than punch-in designs. Every edge is deburred to prevent snags during assembly or field stripping.

Compatibility Notes

The lower accepts standard AR-15 parts kits, including mil-spec triggers, hammers, and safety selectors. It works with commercial and mil-spec buffer tubes, though some aftermarket stocks may require minor fitting. Forged uppers generally fit without issue, but billet uppers may need slight adjustment due to variance in manufacturer specs.

Installation Overview

Assembling the lower requires basic tools: a punch set, armorer’s wrench, and vise block. The threaded bolt catch pin and rear detent simplify installation versus roll pins. Apply grease to the tension screw threads to prevent seizing. Test fit your upper before final torque—the tension screw allows micro-adjustments for a snug fit. Function-check the safety selector and mag release after assembly.

FAQ

Q: Does this work with drop-in triggers?
A: Yes, most mil-spec and aftermarket drop-in triggers fit, but check clearance for oversized housings.

Q: Is the trigger guard removable?
A: No, it’s machined as part of the lower for added strength.

Q: Will this lower work with a .308 upper?
A: No, it’s designed for AR-15 platforms only, not AR-10/LR-308 patterns.

Q: Are jigs included for 80% completion?
A: This is a stripped, serialized lower—no jigs or drilling required.

Q: What’s the difference between billet and forged?
A: Billet receivers are CNC-machined for tighter tolerances; forged receivers are hammered into shape and generally heavier.

Warranty & Shipping

Wilson Combat covers manufacturing defects under their standard warranty. Inspect the lower upon arrival and contact the manufacturer directly for issues. Ships discreetly to all U.S. states where permitted by law. Delivery times vary based on FFL processing.

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