Davidson Defense Starlance 18-inch Mid-Gas 1:10 .308 Win AR-10 Freefloat M-Lok Handguard Rifle Complete Upper Build

Starlance 18-inch Mid-Gas 1:10 .308 Win AR-10 Freefloat M-LOK Rifle Complete Upper

The Starlance is a .308 Winchester AR-10 Complete Upper built around an 18-inch mid-length gas platform. The kit centers on an 18-inch contour profile 4150 CrMoV steel barrel with a manganese phosphate finish, 1:10 twist rate, and 5/8x24 thread pitch, paired with a nitride flash and sound forwarder and a black 5/8-inch crush washer. A micro low-profile steel gas block at 0.750 diameter and a mid-length stainless steel gas tube are included on the front end. The AR-10 high profile black anodized upper receiver features a forward assist and an LR-308 ejection port door assembly, paired with a 15-inch Crest Series high profile LR-308 freefloat M-LOK handguard with a continuous top Picatinny rail and front and rear Picatinny rail sections. A Recoil Technologies LR-308 complete bolt carrier group with a nitride finish, compatible with .308 Winchester, 6.5 Creedmoor, and .243 Winchester, and an LR-308 aluminum charging handle complete the upper component set.

Key Features

• 18-inch contour profile 4150 CrMoV steel barrel, manganese phosphate finish, 1:10 twist, 5/8x24 thread pitch, .308 Winchester
• Mid-length gas system
• Mid-length stainless steel gas tube
• Micro low-profile steel gas block, 0.750
• Nitride flash and sound forwarder, 5/8x24, black 5/8-inch crush washer included
• AR-10 high profile upper receiver, black anodized, forward assist, LR-308 ejection port door assembly
• 15-inch Crest Series high profile LR-308 freefloat M-LOK handguard, continuous top Picatinny rail, front and rear Picatinny rail sections
• Recoil Technologies LR-308 complete bolt carrier group, nitride finish, .308 Winchester and 6.5 Creedmoor and .243 Winchester compatible
• LR-308 aluminum charging handle

Perfect For

• Builders sourcing a complete .308 Winchester AR-10 upper with an 18-inch manganese phosphate 4150 CrMoV contour profile barrel, AR-10 high profile black anodized upper receiver with forward assist, Recoil Technologies LR-308 nitride BCG compatible with multiple calibers, and 15-inch Crest Series LR-308 freefloat M-LOK handguard with continuous top Picatinny rail and front and rear rail sections ready to pair with their own lower receiver
• Shooters building an 18-inch mid-gas .308 Winchester AR-10 rifle platform who want the Recoil Technologies LR-308 BCG and LR-308 charging handle covered in one complete upper with an AR-10 high profile black anodized upper receiver and Crest Series high profile LR-308 freefloat M-LOK handguard
• AR-10 builders who want a .308 Winchester complete upper with a Recoil Technologies LR-308 nitride BCG compatible with multiple calibers without sourcing components separately

Barrel and Muzzle Device

The 18-inch contour profile barrel is chambered in .308 Winchester and constructed from 4150 CrMoV steel with a manganese phosphate finish. The twist rate is 1:10 and the thread pitch is 5/8x24, which matches the included nitride flash and sound forwarder. A black 5/8-inch crush washer, a micro low-profile steel gas block at 0.750 diameter, and a mid-length stainless steel gas tube cover the front end gas configuration on this mid-length platform.

Upper Receiver and Handguard

The AR-10 high profile upper receiver carries a black anodized finish with a forward assist and an LR-308 ejection port door assembly. The 15-inch Crest Series high profile LR-308 freefloat M-LOK handguard features a continuous top Picatinny rail, front and rear Picatinny rail sections, and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-10 platform.

Bolt Carrier Group and Charging Handle

The Recoil Technologies LR-308 complete bolt carrier group carries a nitride finish and is compatible with .308 Winchester, 6.5 Creedmoor, and .243 Winchester. An LR-308 aluminum charging handle is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility with your specific .308 Winchester AR-10 lower receiver before use.