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. This is a stripped lower nothing else included. Featuring a blued finish. - .223/5.56 - Aircraft Grade 6061-T6 Aluminum
Determined at checkout.