SLR-107UR (SLR107UR) – Stamped receiver, 7.62x39mm caliber, short gas system, front sight block / gas block combination, 16″ chrome lined hammer forged barrel, cleaning rod, black polymer furniture, stainless steel heat shield, left-side folding polymer stock, 2 stage trigger, and scope rail, ships with 5-rd magazine (optional 30rd Circle 10 magazine shown in main image). This rifle, chambered in 7.62x39mm, utilizes the famous short gas system (Krinkov or AKS-74U) and features a full-length 16″ barrel. A perfect candidate for SBR (Short Barrel Rifle) *, the SLR-107UR rifle is a brand new Bulgarian stamped receiver rifle that is built from all original brand new factory parts and premium quality US made components, from its hammer forged chrome lined barrel to the original Bulgarian Arsenal mil-spec. stamped receiver. The SLR-107UR comes with Arsenal’s already famous left-side folding solid polymer buttstock and ribbed handguards. The folding buttstock makes the SLR-107UR compact rifle for carrying easily and locks in its extended position rock-solid and provides all the comfort you need during shooting. The lower handguard comes with Arsenal’s stainless steel heat shield, which helps keep your hand cooler when shooting. FIME Group Enhanced Fire Control Group Includes FM-922EUS, the Enhanced Fire Control Group (FCG) for AK- and RPK-based rifles with stamped receivers. FIME’s Enhanced FCG includes a single-hook trigger, hammer, disconnector, disconnector springs. FIME’s Enhanced Fire Control Group delivers shortened trigger travel with an extremely smooth and light trigger pull. To prevent lever misfires, the disconnector face makes full contact with the hammer. Further, the disconnector is engineered with an elongated tail, which makes a full stop on the rear trigger guard rivet and the hammer stop prevents the hammer from slamming on the trigger. With these two designs functioning together, it eliminates the “trigger slap” found in competing products.