Noveske 4th Gen N4 Upper Receiver Features The Noveske 4th Gen N4 Complete Upper is precision machined from 7075-T6 billet aluminum giving the receiver tight tolerances and a rigid platform for reliable cycling. Extended feed ramps smooth the transition of a round from magazine to chamber reducing feeding issues across a range of ammunition types. The carry handle integrates a Noveske-marked teardrop forward assist and an A2 adjustable rear sight giving the upper usable iron sights without additional purchases. A standard 1913 top rail marked with the Noveske Cross allows optics or accessories to be added later without losing the sight capability already built in. Because the carry handle and rear sight are factory fitted rather than bolted on as an afterthought the sight picture stays consistent and the upper is ready to mount on a lower the moment it arrives. Type III hardcoat anodizing protects the receiver from wear and corrosion through heavy use in the field or at the range holding up to repeated handling without flaking or thinning. The anti-rotation interface is engineered specifically to match Noveske 4th Generation handguards ensuring a solid rattle-free fit when paired with Noveske s own components rather than a generic aftermarket rail. The upper ships fully assembled with the port door rod and spring in place and is compatible with N4 barrel nuts for a straightforward build that skips several small-parts purchases. For AR-15 builders seeking a proven billet upper from a respected name in the industry one that pairs iron-sight readiness with Noveske s own handguard system this Noveske receiver is available for sale at GrabAGun. Noveske 4th Gen N4 Upper Receiver Specifications Manufacturer: Noveske Model: 4th Gen N4 Upper Receiver Type: Upper Receiver Caliber: 5.56 Color: Black Finish: Anodized Sights: Carry Handle A2 Adjustable Rear Compatible Hosts: AR-15 Available At: GrabAGun