The TacFire SSRK308LPK18BN AR Build Kit Sports South Exclusive 308 Win AR-10 Black Nitride 5/8"x24 brings together the core components needed to assemble a reliable large-frame AR-10 rifle. Centered around a .308 Winchester 18" nitride barrel with a 5/8"-24 threaded muzzle, this kit pairs a DPMS-profile stripped upper receiver with a slim 15" M-LOK handguard, AR-10 bolt carrier group, and matching charging handle to create a solid upper foundation.

Designed for builders who want a cohesive .308 Winchester platform, the kit also includes a heavy buffer and spring, Mil-Spec buffer tube, adjustable M4-style stock with QD sling swivel, .308 lower parts kit (no grip), and an enhanced AR-15 pistol grip for improved control. Ideal for range use, hunting, and general training, this comprehensive package lets you focus on fit and function while relying on TacFire’s consistent machining and thoughtful component selection.

Key Features:

• Manufacturer: TacFire
• Model: AR Build Kit
• Caliber: 308 Win
• Action: Semi-Auto (requires compatible lower receiver)
• Barrel Length: 18"
• Threaded Barrel: 5/8"-24
• Includes: Barrel, handguard, stripped upper, BCG, charging handle, buffer system, stock, lower parts kit, pistol grip
• Firearm Fit: AR-10 / DPMS-profile .308 platform