N6 4TH Generation Upper Receiver

This is a LARGE frame receiver.  It is designed for our N6 line of LARGE frame receivers and will not work on a AR-15 (N4) SMALL frame lower

• Noveske 4^th Generation precision machined billet receiver from 7075-T6 aluminum w/extended feed ramps
• Picatinny mil-standard 1913 top rail with Noveske Cross
• Hardcoat type III anodizing
• Featuring anti-rotation interface with handguard now with two anti-rotation pins
• Receiver designed to match the profile of Noveske N6 4^th Generation handguards
• N6 barrel nuts are threaded 1 7/16x 16 TPI