The WMD Guns Nib-X Bolt Assembly 5.56 is engineered to deliver smooth, reliable cycling for AR-15 platforms chambered in .223 Remington and 5.56 NATO. Built from quality steel and finished with WMD’s proprietary NiB-X nickel boron coating, this bolt assembly is optimized for long service life, easier cleaning, and consistent locking and unlocking with the barrel extension.

This complete bolt assembly arrives ready to drop into a compatible carrier, making it a practical upgrade for range use, training, or general-purpose rifle builds. The slick, corrosion-resistant NiB-X surface helps reduce fouling adhesion so maintenance is straightforward after extended shooting sessions. Backed by WMD Guns’ focus on durable coatings and thoughtful engineering, this bolt assembly is a solid choice for shooters looking to enhance reliability and ease of upkeep.

• Manufacturer: WMD Guns
• Model: NIB-X Bolt Assembly 5.56
• Caliber: .223 Remington / 5.56 NATO
• Finish Color: NiB-X Nickel Boron
• Type: Bolt Assembly