Davidson Defense Cottonmouth 350 16-inch Carbine-Gas 1:16 .350 Legend AR-15 Freefloat M-Lok Handguard Rifle Full Build Kit

Davidson Defense Cottonmouth 350 AR-15 Full Build Kit - 16-inch, .350 Legend, Carbine Gas, M-Lok Freefloat Handguard

The Davidson Defense Cottonmouth 350 is a .350 Legend AR-15 full build kit built around a 7075-T6 aluminum upper receiver with an anodized finish. The kit includes a 16-inch M4 profile barrel in 4150 chrome moly vanadium steel with a phosphate finish, a 1:16 twist rate, and a 5/8x24 thread pitch, a freefloat M-Lok handguard in 6061-T6 aluminum, a micro low-profile 0.75 gas block, a flash hider at 5/8x24, an AR-15 5.56 and .223 and .300 and .350 compatible nitride-finished 9310 alloy steel bolt carrier group, a Mil-Spec M4 charging handle, a SOPMOD style collapsible stock with storage compartments, a Mil-Spec heavy-duty 6-position buffer tube, a 3 oz buffer, a recoil spring, an end plate, and a castle nut. Lower receiver not included.

Key Features

• 7075-T6 aluminum upper receiver, anodized finish
• 16-inch M4 profile barrel, 4150 chrome moly vanadium, phosphate finish
• .350 Legend
• 1:16 twist rate
• 5/8x24 thread pitch
• Carbine gas system
• Micro low-profile 0.75 gas block
• Freefloat M-Lok handguard, 6061-T6 aluminum, M-Lok at 6 o'clock position
• Flash hider, 5/8x24
• AR-15 9310 alloy steel bolt carrier group, nitride finish, 5.56 and .223 and .300 and .350 compatible
• Mil-Spec M4 charging handle
• SOPMOD style collapsible stock with storage compartments
• Mil-Spec heavy-duty 6-position buffer tube
• 3 oz buffer
• Recoil spring
• End plate
• Castle nut
• Lower receiver not included

Perfect For

• AR-15 builders sourcing a complete .350 Legend full build kit
• Shooters pairing this kit with an existing AR-15 lower receiver
• Builders looking for a freefloat M-Lok full build kit in .350 Legend with a BCG and stock included

Balmung Barrel and Gas System

The Balmung barrel is a 16-inch M4 profile barrel in 4150 chrome moly vanadium steel with a phosphate finish. It is chambered in .350 Legend with a 1:16 twist rate and a 5/8x24 thread pitch. The carbine gas system runs through a micro low-profile 0.75 gas block, and a flash hider in the same thread pitch is included at the muzzle.

Upper Receiver and Handguard

The upper receiver is 7075-T6 aluminum with an anodized finish. The freefloat M-Lok handguard is 6061-T6 aluminum with M-Lok attachment positions at the 6 o'clock position, providing a mounting surface for compatible accessories along the underside of the handguard.

Bolt Carrier Group and Charging Handle

The included bolt carrier group is 9310 alloy steel with a nitride finish, compatible with 5.56, .223, .300, and .350 platforms. A Mil-Spec M4 charging handle is included as part of the upper component set.

Stock and Buffer System

The stock is a SOPMOD style collapsible unit with internal storage compartments. The buffer system consists of a Mil-Spec heavy-duty 6-position buffer tube, a 3 oz buffer, and a recoil spring. An end plate and castle nut complete the rear hardware included with this full build kit.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.