This Bear Creek Arsenal AR-15 5.56 Complete rifle has a 16" M4 barrel with a parkerized finish, and features a 1:8 twist, with a carbine length gas system. This 5.56 AR-15 also includes a 11.5" MLOK rail, a billet upper receiver, a BCA AR15 Bolt Carrier Group, Flash Hider, rear charging handle, and mil-spec billet AR-15 multicaliber lower. Visit our YouTube channel to see our AR-15s and AR-10s in action and get answers to common questions about your gun. Shop more 5.56 NATO Rifle!Bear Creek Arsenal manufactures all AR-15 rifles, complete upper assemblies, barrels, bolt carrier groups (bcg), and components in-house here in Sanford, NC. Choose an American-made AR-15 complete rifle from Bear Creek Arsenal, designed for high accuracy and backed by a lifetime warranty. Check out Magazines here!{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="56"}}*Note - We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.{{widget type="Magento\Cms\Block\Widget\Block" template="widget/static_block/default.phtml" block_id="42"}}Must be 18 years of age or older to purchaseWe can ship out to your local FFL and we will help you find one close to you! Use the drop-down menu and select the radius from your zip code. If we do not have their license on file, we can help you get it by reaching out for you via email or calling them! If you do not see the FFL you want it shipped to just email us at ffl@bearcreekarsenal.com and we can add them to our options.