Product DescriptionThe Noveske N4 Afghan Complete Upper Receiver is built for shooters who want premium AR-15 upper performance in 6mm ARC. This upper features a 14.5-inch 416R stainless steel barrel with a 1:7 twist and 3-land-and-groove rifling, paired with a mid-length gas system for smooth cycling. The hand-polished Noveske Match Chamber, extended hand-polished feed ramps, and pinned low-profile gas block reflect the attention to detail expected from Noveske.This complete upper is equipped with a Noveske 4th-generation billet 7075-T6 aluminum receiver, a Noveske Love Handle ambidextrous charging handle, and a 13.5-inch NSR free-floating M-LOK handguard with a continuous Picatinny top rail. A Noveske Pig Pen suppressor-compatible muzzle device is permanently pinned and welded to bring the overall barrel length to the 16-inch requirement, making this upper a strong choice for precision-minded shooters building a premium 6mm ARC rifle.Product Highlights 14.5-inch 416R stainless steel barrel chambered in 6mm ARC with 1:7 twist and 3-land-and-groove rifling for accuracy-focused performance Mid-length gas system with pinned low-profile gas block for dependable operation and consistent recoil impulse Noveske Gen 4 billet 7075-T6 upper receiver paired with a full-auto bolt carrier group and DLC-coated Noveske bolt 13.5-inch NSR free-floating M-LOK handguard with continuous Picatinny top rail for versatile accessory mounting Pig Pen muzzle device is permanently pinned and welded, offering suppressor compatibility while meeting 16-inch overall barrel length requirements Specs Product Type: Complete upper receiver Caliber: 6mm ARC Platform Compatibility: AR-15 Barrel Length: 14.5 in Overall Legal Barrel Length Configuration: 16 in with pinned and welded muzzle device Barrel Material: 416R stainless steel Twist Rate: 1:7 Rifling: 3-land-and-groove Gas System: Mid-length Chamber: Hand-polished Noveske Match Chamber Feed Ramps: Extended hand-polished feed ramps Gas Block: Pinned low-profile gas block Muzzle Device: Noveske Pig Pen suppressor-compatible muzzle device Thread Pitch: 5/8x24 Receiver Material: Billet 7075-T6 aluminum Finish: Hardcoat Type III anodizing with Cerakote finish Charging Handle: Noveske Love Handle ambidextrous charging handle Bolt Carrier Group: Full-auto compatible, phosphate-coated carrier with chrome-lined carrier bore and key Bolt: DLC-coated Noveske 6mm ARC/6.5 Grendel bolt, SAE 9310 heat-treated steel Handguard: 13.5 in NSR free-floating M-LOK handguard Top Rail: Continuous Picatinny 1913 top rail Color: Black UPC: 840906139684 MPN: 03002720 Brand: Noveske Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.