AR15/M4 Barrel Kit 5.56 NATO by Ballistic Advantage 16" Pencil Profile Barrel w/Pinned Carbine Length A2 Front Sight Block and Delta Ring Handguard Hardware. Assemble or convert your rifle the easy way. These kits come with the Delta Ring hardware, handguard cap, and A2 Front Sight Block pre-assembled. All you have to do is install the barrel on your upper with a carbine-length gas tube and carbine-length handguards (sold separately).
Should You Install a New Bolt w/This Barrel? Some of our customers have suggested that we should include a new bolt with our AR15 barrels. THEY say you should install a new bolt anytime you install a new barrel on an AR15 platform. On the other hand WE'RE trying to keep costs down and if you already have a good bolt, there's no sense in adding the cost of another one if you don't need it. So, if you want to add a new bolt to your barrel order, you can select "Yes" to add one for an extra charge. Our Nickel Boron bolts are excellent and reasonably priced!