Details
Davidson Defense Sedna AR-10 Complete Upper - 18-inch, .308 Win, Rifle Gas, M-Lok Freefloat Handguard
The Davidson Defense Sedna is a .308 Win AR-10 complete upper built around a 7075-T6 aluminum upper receiver with an anodized finish. The build includes a Scrubber 18-inch contour profile LR-308 barrel in 4150 chrome moly vanadium steel with a phosphate finish, a 1:10 twist rate, and a 5/8x24 thread pitch, a 15-inch freefloat M-Lok handguard in black aircraft-grade aluminum, a 0.75 rifle-length gas block, a GI Birdcage flash hider at 5/8x24, a Recoil Technologies nitride-finished 9310 alloy steel LR-308 bolt carrier group compatible with .308 WIN, 6.5 Creedmoor, and .243 WIN, and an ambidextrous AR-10 and LR-308 charging handle. The high profile upper receiver and 15-inch freefloat M-Lok handguard are sized for the AR-10 platform, forming the structural core of the upper assembly around the 18-inch Scrubber barrel. The Recoil Technologies LR-308 BCG and ambidextrous AR-10 charging handle work together as the upper cycling component set, with the charging handle sized specifically for the AR-10 platform to interface correctly with the LR-308 BCG and upper receiver.
Key Features
- 7075-T6 aluminum upper receiver, anodized finish
- Scrubber 18-inch contour profile LR-308 barrel, 4150 chrome moly vanadium, phosphate finish
- .308 Win
- 1:10 twist rate
- 5/8x24 thread pitch
- Rifle-length gas system
- 0.75 gas block
- 15-inch freefloat M-Lok handguard, aircraft-grade aluminum, black
- GI Birdcage flash hider, 5/8x24
- Recoil Technologies LR-308 bolt carrier group, 9310 alloy steel, nitride finish, .308 WIN and 6.5 Creedmoor and .243 WIN compatible
- Ambidextrous AR-10 and LR-308 charging handle
Perfect For
- AR-10 builders sourcing a complete .308 Win upper with BCG and charging handle included in an 18-inch rifle gas configuration
- Shooters pairing this complete upper with an existing AR-10 high profile pattern lower assembly
- Builders looking for an 18-inch .308 Win complete upper with a freefloat M-Lok handguard and chrome moly vanadium barrel
Scrubber Barrel and Gas System
The Scrubber barrel is an 18-inch contour profile LR-308 unit in 4150 chrome moly vanadium steel with a phosphate finish, chambered in .308 Win with a 1:10 twist rate and a 5/8x24 thread pitch. The rifle-length gas system pairs with a 0.75 gas block to cover the gas regulation side of the upper. A GI Birdcage flash hider at 5/8x24 rounds out the muzzle end.
Upper Receiver and Handguard
The upper receiver is 7075-T6 aluminum with an anodized finish, sized for the AR-10 platform and forming the structural core of the upper assembly. The 15-inch freefloat M-Lok handguard is aircraft-grade aluminum in black, surrounding the barrel without contact and providing M-Lok mounting positions for compatible accessories.
Bolt Carrier Group and Charging Handle
The Recoil Technologies LR-308 bolt carrier group is 9310 alloy steel with a nitride finish, compatible with .308 WIN, 6.5 Creedmoor, and .243 WIN platforms. The ambidextrous AR-10 and LR-308 charging handle is sized for the AR-10 platform and works with the LR-308 BCG and upper receiver to complete the upper cycling component set needed to run this complete upper on a compatible lower receiver.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.
