RFB Carbine 7.62 NATO/.308 Winchester 18 Inch Chrome-Lined Blued Barrel Black Stock Birdcage Flash Hider 10 Round. Rifle Forward-ejecting Bullpup. Fully ambidextrous operations. Chrome lined blued barrel with 5/8-24 threads. A2 style compensator. Front ejection of cases. Top Picatinny rail for mounting sights (no sights included). Gunsmith replaceable barrel with adjustable headspace. Click adjustable gas system for various power ammo or suppressor use. Accepts FAL metric magazines with straight-in/drop-free magazine well (one magazine included). Nylon sling and hardware included. In-grip storage capability.