The Odin Works 18-inch DMR Barrel (brand part no. B-6MM-18-ARC-2R-TG-BCG) is a stainless steel, 6mm ARC barrel built for a designated marksman rifle configuration. The kit includes a 6.5 Type II bolt carrier group, runs an XL rifle-length gas system with an included .750 tunable gas block, and is threaded 5/8-24.

Key Specifications

• Barrel measures 18 inches.
• Chambered in 6mm ARC.
• Machined from stainless steel.
• Runs an XL rifle-length gas system.
• Includes a .750 tunable gas block.
• Threaded 5/8-24.
• Includes a 6.5 Type II bolt carrier group.
• No iron sights included — ships optic-ready.
• Cannot be direct-shipped to California.

Frequently Asked Questions

Is this barrel legal without any special paperwork? Yes, at 18 inches it clears the federal minimum rifle barrel length, so no NFA registration is required.

Does this include the bolt carrier group? Yes, it includes a 6.5 Type II bolt carrier group.

What gas system does this kit use? An XL rifle-length gas system with an included .750 tunable gas block.

Buy the Odin Works 18in DMR Barrel, 6mm ARC, w/BCG

Order the Odin Works 18-inch DMR Barrel through our Odin Works lineup at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop, along with more AR15 build kits.