The Wraithworks WARP-15 Polymer Complete Lower Receiver (part no. WARP15-BLK-C) is a monolithic AR-15 style receiver molded as one piece from 30% glass-filled nylon, integrating the buttstock, buffer tube, and pistol grip into the design and arriving with a full Mil-Spec fire control group already installed. Wraithworks fits it with a KP-15 optimized selector, long hammer pin, carbine buffer and spring, mag catch assembly, bolt catch assembly, and takedown/pivot pins, so this lower is ready to accept an upper right out of the box. It carries a fixed A1-length stock, a Wraithworks textured pistol grip, and a trap-door buttplate for storage.

Key Specifications

• Molded as one piece from 30% glass-filled nylon for a lightweight receiver.
• Integrates the buttstock, buffer tube, and pistol grip into a single unit.
• Ships with a Mil-Spec fire control group fully installed.
• Includes a KP-15 optimized selector and long hammer pin.
• Fitted with a carbine buffer and spring and buffer detent assembly.
• Features a fixed A1-length stock with MLOK and QD sling attachment points.
• Includes a Wraithworks-exclusive textured pistol grip and a trap-door buttplate.
• Finished in black to match standard AR-15 builds.
• Multi-caliber compatible with standard AR-15 pattern uppers.

Frequently Asked Questions

Is this lower ready to build with immediately? Yes, it ships complete with a Mil-Spec fire control group installed and only needs an upper to function.

Does it have a stock? Yes, a fixed A1-length stock is molded directly into the one-piece polymer receiver.

What buffer does it use? A standard carbine buffer and spring; other buffer types are not recommended.

Buy the Wraithworks WARP-15 Polymer Complete Lower Receiver

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