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Wrap your hands around the lower receiver every buccaneer wants for their new modern musket. When you want something uniquely you, show off your independent attitude and adventurous spirit with a precision CNC machined Jack lower from Sharps Bros. This lower receiver displays the inspired design of a pirate like skull carved and shaped into the magazine well with great detail. Milled from strong 7075-T6 aluminum it has bullet pictogram selector markings on both sides. Multi caliber marked, this lower is ready for your .223/5.56, 6.5 Grendel or .300 AAC Blackout build. It features a heavily flared magwell with an oversized integrated trigger guard and accepts any standard AR15 pattern magazine including GI and PMAGS. Fully compatible with all mil-spec internal parts and aftermarket mil-spec upper receivers, you won't have any trouble building the ultimate ultra-reliable lower receiver. This amazing looking base platform for your next rifle is finished in an extremely durable mil-spec hardcoat anodized black finish. It's time to build your next modern sporting rifle. It's time for you to pickup a Jack Lower from Sharps Bros. me hearty. This lower has all the pirate ship with half the scurvy.