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

Starlance 18-inch Mid-Gas 1:10 .308 Win AR-10 Freefloat M-LOK Rifle Full Build Kit

The Starlance is a .308 Winchester AR-10 Full Build Kit 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 full-length top Picatinny rail. 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 side. The lower hardware includes a Recoil Technologies .308 Mil-Spec lower parts kit, a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an LR-308 collapsible stock buffer at 3.76 oz, an AR-10 carbine extra power buffer spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The Special Operations adjustable stock rounds out the kit. Lower receiver not included.

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, full-length top Picatinny rail
• 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
• Recoil Technologies .308 Mil-Spec lower parts kit
• Mil-Spec heavy-duty 6-position aluminum carbine buffer tube
• LR-308 collapsible stock buffer, 3.76 oz
• AR-10 carbine extra power buffer spring
• Mil-Spec AR-15 M16 receiver end plate
• AR-15 carbine castle nut
• Special Operations adjustable stock

Perfect For

• Builders sourcing a complete .308 Winchester AR-10 full build kit 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, 15-inch Crest Series LR-308 freefloat M-LOK handguard with full-length Picatinny rail, and Special Operations adjustable stock already included, pairing it 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, LR-308 charging handle, complete lower parts kit, and Special Operations adjustable stock covered in one kit with a Crest Series high profile LR-308 freefloat M-LOK handguard
• AR-10 builders who want a .308 Winchester full build kit with a Recoil Technologies LR-308 nitride BCG compatible with multiple calibers and a Special Operations adjustable stock 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 full-length top Picatinny rail 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.

Lower Parts Kit and Buffer System

The Recoil Technologies .308 Mil-Spec lower parts kit covers the internal lower receiver components. The buffer system includes a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, an LR-308 collapsible stock buffer at 3.76 oz, an AR-10 carbine extra power buffer spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The Special Operations adjustable stock pairs with the included Mil-Spec carbine buffer tube and covers the rear stock interface for this build.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify compatibility with your specific .308 Winchester AR-10 lower receiver before use.