This Faxon Firearms FF10XRS features an adjustable gas block, an SB adjustable pistol brace, a B5 Systems grip, and a Q suppressor threaded muzzle device. A soft-sided case and one 20-round magazine are 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.