Looking to take your AR-15 to the next level? Maybe you have a dedicated upper receiver designed for a particular task, and you're looking to open up your rifle's capabilities? This Stag Arms Stag-15 Tactical Upper Receiver is an easy swap for your mil-spec AR-15 lower, and it gives you options that broaden your options, and it gives you all of this in a high-quality package that's designed for premium performance. Each Stag Arms Stag-15 Tactical Upper Receivers are chambered in 5.56 NATO and feature a 16-inch barrel complete with a 1:7-inch rate of twist, which is designed to stabilize heavier-weight bullets, so you can sling lead downrange with greater energy and capability than ever before. The mid-length gas system reduces wear on your internal components, ensuring that you get a long service life from your platform. Surrounding the entire barrel assembly is a Stag Arms M-LOK handguard, which is free-floated to ensure accuracy, and it includes a full-length Picatinny rail at the top to give you more flexibility for optics and accessory mounting. All you need to do to complete this Stag Arms Stag-15 Tactical Upper Receiver is add a bolt-carrier group and charging handle of your choice, and you're ready to rock.