The LWRC REPR MK II is a semi-automatic rifle chambered in 308 Win7.62 NATO. A 16.1 or 20 barrel is equipped with a four-port muzzle brake and adorned with LWRC Skirmish front and rear sights. The REPR MK IIs picatinny rail allows users to attach their choice of other optics while the Magpul PRS stock has an adjustable cheek piece and length of pull. Details CALIBER 7.62 x 51mm NATO - BARREL LENGTH 16.1 - WEIGHT 8.75 lbs (3.97kg) - MUZZLE THREADS 58 x 24 TPI - RIFLING 110 RH - Forged lower receiver - LWRCI Monoforge Upper Receiver is stronger and lighter increased rigidity improved accuracy - 20 position gas block for maximum tuning of attachments and ammo - Geissele SSA-E trigger - Magpul UBR stock - LWRCI Patented Short Stroke Gas Piston system for unparalleled reliability - Top Side Ambidextrous Charging handle same length as standard AR 10 - LWRCI Cold-Hammer-Forged NiCorr-treated Spiral-Fluted Barrel - LWRCI 12.5 Modular Rail System. Removable top-rail with 100 return to zero no tool re-installation. Allows for quick access to piston system - Fully Ambidextrous Lower Controls Mag Release Bolt Catch Release and Selector - Upper and Lower receivers machined from billet aluminum delivering rugged durability and lighter weight - LWRCI Skirmish Back Up Iron Sights - Surefire SFMB suppressor adapter - Sub MOA Accuracy