This Bravo Company Manufacturing BCM4 features a BCM adjustable stock, a BCM pistol grip, an RVG Magpul foregrip, a 14.5" pinned and welded barrel with a muzzle brake for 16.5", an ambidextrous charging handle, and a thumb safety/selector. One 30-round PMAG is included. Get the best bang for your buck when you get a Certified Used Firearm. When you see the Certified Used stamp on any of our firearms, you can be confident that you're getting exactly what you want - a gun only in very good to excellent condition and held to the highest quality standard. All Certified Used Guns come with a 'no questions asked' return policy.