Noveske Rifleworks Gen 4 N4 SPR Stainless 6MM ARC Complete Upper Receiver - 18"

The Noveske Rifleworks Gen 4 N4 SPR 6mm ARC Complete Upper Receiver features an 18” barrel made from 416R stainless steel with a 1:7 twist. Its rifle-length gas system and low-profile gas block provide reliable operation, while the Noveske Pig Pen muzzle device adds suppressor compatibility. The billet receiver, crafted from 7075-T6 aluminum, is coated with hardcoat anodizing and finished with Armor Black Cerakote for durability. The 15” M-LOK NSR handguard offers versatile accessory mounting with positions every 45 degrees and a 1913 picatinny top rail.

Features:

• 18” 6mm ARC 416R stainless steel, 1:7 twist
• Hand-polished Noveske Match Chamber
• Low-profile gas block, pinned to barrel
• 5/8x24 thread pitch with Noveske Pig Pen device
• 7075-T6 billet aluminum upper, extended feed ramps
• Hardcoat anodizing with Armor Black Cerakote finish
• Ambidextrous charging handle
• Phosphate-coated, full-auto compatible bolt carrier
• 15” NSR M-LOK Handguard