Noveske Chainsaw Upper Receiver, 5.56mm NATO, M-LOK, Black Overview: The Noveske Chainsaw upper receiver is a complete 5.56mm NATO upper assembly combining a 416R stainless steel barrel, forged 7075-T6 aluminum upper receiver, and 4th Generation NSR free-floating M-LOK handguard. The assembly incorporates Noveske-specific components throughout, including the Love Handle charging handle and Chainsaw receiver. Key Features: 416R Stainless Steel Barrel: 11.5-inch or 10.5-inch barrel with a 1:7 twist rate. Mid-Length Gas System: Uses a mid-length gas tube configuration. Pinned Low-Profile Gas Block: .750-inch journal gas block is pinned to the barrel. Chainsaw Upper Receiver: Forged 7075-T6 aluminum construction with extended feed ramps. Ambidextrous Charging Handle: Noveske Love Handle design. Free-Floating Handguard: 4th Generation NSR-10.75-inch M-LOK handguard. Picatinny Top Rail: Integrated 1913 rail provides a continuous mounting surface. Muzzle Configuration: 1/2"A-28 threaded muzzle with A2 birdcage flash hider. Specifications: Brand: Noveske Series: Chainsaw Product Type: Upper Receiver Assembly Caliber: 5.56mm NATO Barrel Length: 11.5" or 10.5" Barrel Material: 416R Stainless Steel Twist Rate: 1:7 Chamber: Noveske Match Chamber Barrel Extension: M4 with Extended Hand-Polished Feed Ramps Muzzle Threads: 1/2"A-28 Muzzle Device: A2 Birdcage Flash Hider Upper Receiver Material: 7075-T6 Aluminum Upper Receiver Finish: Type III Hardcoat Anodized Charging Handle: Noveske Love Handle, Ambidextrous Bolt Carrier: Phosphate Coated Carrier Bore & Key: Chrome Lined Gas Key Bolts: Grade 8, Properly Staked Bolt Material: Carpenter 158 Heat-Treated Steel Bolt Testing: MPI Tested Handguard: 4th Generation NSR-10.75" M-LOK Handguard Type: Free Floating M-LOK Positions: Every 45Adeg Top Rail: Picatinny 1913 Barrel Nut: Lightweight American-Made Steel Applications: Range Shooting: Suitable for lawful recreational shooting and training with a compatible lower receiver. Competition Builds: Can be incorporated into compatible competition-oriented AR-pattern configurations. Custom Rifle Builds: Provides a complete upper assembly for compatible lower receivers. Optics & Accessories: The Picatinny rail and M-LOK interface accommodate compatible accessories. Recreational Firearm Projects: Suitable for lawful assembly and use where permitted by applicable regulations. Additional Features: Individual Barrel Serialization: Each barrel is individually serialized for quality-control purposes. Anti-Rotation Interface: The charging-handle/handguard interface incorporates an anti-rotation feature. Extended Feed Ramps: The M4 barrel extension and receiver use extended feed-ramp geometry. Full-Auto-Compatible Carrier: The bolt carrier is specified as full-auto compatible. Noveske Components: Uses Noveske-marked components including the gas block and forward assist. Lightweight Handguard Hardware: Includes a lightweight American-made steel barrel nut.