This is a factory new complete lower polymer receiver (latest generation - just received)) from New Frontier Armory. This is the toughest polymer receiver made and it comes with a lifetime warranty to back it up. It is ready to attach to any Mil-Spec upper and be ready to fire! It features a 6 position adjustable buttstock and an endplate with ambidextrous sling adapter. New Frontier Armory Model LW-15 Light weight polymer AR-15 Lower •Complete* Lower - ready to pin onto upper and fire!!! •Lightweight – weighs in at 1.6 lbs – That’s 7.2oz lighter than a standard lower •Lightest most durable composite polymer lower on the market today •Low maintenance / easy cleaning / scratch resistant •Accepts all standard MIL SPEC uppers and lower parts •Features the accu-group composite fire control system with 4.5lb trigger pull •Can accommodate any brand MIL SPEC LPK upgrade •Reversible safety to accommodate left or right hand shooters •“Zero Slop” fit eliminates the need for wedges •Lifetime warranty against any manufacturer defects when used as directed Check out these torture test videos: Shipping is only $12 on this item anywhere in the continental US. I accept the following forms of payment: Credit Cards (MC, Visa, Discover - NO FEES!), money order, or a cashiers check. TX residents must pay 6.25% sales tax. Feel free to ask any questions you may have. For California buyers, I will install the bullet button for an extra $30.