The Smith & Wesson M&P15 Factory Stripped Lower Receiver (part no. 812000) is a genuine OEM aluminum lower marked M&P 15 and chambered for .223 Remington/5.56x45mm NATO. Smith & Wesson finishes this receiver in black and builds it to the same standard used across its own M&P 15 rifle line, giving builders a factory-correct foundation if they want an authentic M&P-marked build. It ships stripped, so a lower parts kit, buffer, and stock are needed to complete it.

Key Specifications

• Chambered for .223 Remington/5.56x45mm NATO AR-15 pattern uppers.
• Forged from 7075-T6 aluminum and finished in black.
• Factory marked M&P 15 for an authentic Smith & Wesson build.
• Measures 12.55 inches in overall length.
• Ships as a stripped receiver, ready for your lower parts kit and stock.
• Features an open trigger guard for easy compatibility with standard lower parts kits.
• Weighs approximately 0.7 pounds bare.

Frequently Asked Questions

Is this a genuine Smith & Wesson part? Yes, it is a factory Smith & Wesson receiver marked M&P 15.

What caliber is it chambered for? .223 Remington/5.56x45mm NATO AR-15 pattern uppers.

Does it come with a parts kit? No, it ships stripped and requires a lower parts kit, buffer, and stock to complete.

Buy the Smith & Wesson M&P15 Factory Stripped Lower Receiver

Build on a genuine Smith & Wesson receiver. Browse more AR-15 lower receivers and order from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.