This B-14 features a threaded barrel with thread protector. Purchase includes two 5-round magazines and a Precision Armament M11 Severe Duty muzzle brake (not installed). 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.