Smith & Wesson 812000 Receiver 223 Rem/5.56x45mm NATO 7075-T6 Aluminum Black for S&W M&P15

Factory Smith & Wesson AR-15 Stripped Lower Receiver marked M&P 15. .223 Remington / 5.56 NATO cal. If you have an AR15 planned in your future, build it on a great base with this lower.