The Seekins Precision 10160001F AR10/SP10 Barrel 308 18" is a stainless match-grade barrel built for shooters who demand consistent accuracy from their .308 Winchester AR platform. Designed specifically for Seekins AR-10 and SP10 receivers, this 18-inch barrel combines premium materials with a durable ArmorBlak-style exterior finish and 5/8"x24 threaded muzzle for easy installation of brakes or suppressors.

This barrel’s 1:11 twist rate is optimized for a wide range of .308/7.62x51mm loads, making it a strong choice for precision range work, practical competition, and general training. The .750 gas block journal with alignment dimple simplifies setup with a low-profile adjustable gas block, helping you tune the rifle for smooth cycling and reduced recoil. Backed by Seekins Precision’s reputation for meticulous machining and innovation, this barrel is engineered to elevate the performance of your AR-10/SP10 build.

Key Features:

• Manufacturer: Seekins Precision
• Model: 10160001F AR10/SP10 Barrel 308 18"
• Caliber: .308/7.62x51mm (.308 Winchester)
• Barrel Length: 18"
• Barrel Material: Stainless Steel
• Thread Pattern: 5/8"x24
• Twist: 1:11"
• Compatible With: Seekins AR-10/SP10 Receivers
• Gas Block Journal Size: .750" with alignment dimple