The Ruger AR-556 Multi-Purpose Rifle is a distinct combination of Ruger innovation and Magpul furniture. The AR-556 MPR features a 15″ Free Float M-LOK compatible hand guard along with a Magpul MOE SL Stock and MOE SL Pistol Grip. The barrel is an 18″ 4140 Chrome-moly steel barrel which has been cold hammer forged and features a 1:8″ right hand twist rate. Additional this rifle features a rifle length gas system along with a pair of forged 7075-T6 aluminum upper/lower receivers. The Ruger AR-556 MPR provides you with an exceptional value that can’t be overlooked. All backed by an amazing Ruger warranty which is second to none in the industry.