Made to exacting quality standards and magnetic particle inspected, the Walker Defense Research M16-profile nickel boron Bolt Carrier Group BCG is designed to offer the shooter greater reliability, easier cleaning, and better lubricity (including a lower overall need for lubrication) compared to a standard mil-spec manganese phosphate Bolt Carrier Group BCG. Specifications for Walker Defense Research Nickel Boron Bolt Carrier Group (BCG): Manufacturer: Walker Defense Research Finish: Nickel Boron Fabric/Material: 9310 Steel Cartridge: 5.56x45mm NATO, .300 AAC Blackout, .223 Remington Gun Model: M16, M4, AR-15 Bolt Material: 9310 Steel Carrier Material: 8620 Steel Features of Walker Defense Research Nickel Boron Bolt Carrier Group BCG Designed and Engineered to: Enhance Cycling Reliability with Increased Lubricity, Make Cleaning Significantly Easier, Be Used in Both Semi-Auto and Full-auto AR-pattern Rifles Chambered in 5.56mm or 300 BLK. Coating: Nickel Boron. Profile: M16 / Full Auto Style Carrier with a Properly Staked Gas Key. Magnetic Particle Inspected. Compatibility: M16, M4, AR-15 Using Direct Gas Impingement (Not for Use in Piston Guns). Package Contents: Walker Defense Research Nickel Boron Bolt Carrier Group
3 reviews for Walker Defense Research Nickel Boron Bolt Carrier Group (BCG)
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David –
Out of all my BCGs (Aero Precision, Wilson Combat, Griffin Armament, and a couple cheap mil-spec ones), these Walker Defense Research ones are my favorite. Nickel-Boron is the only way to go for high-quality builds. These are some of the least expensive Nickel-Boron BCGs on the market and the quality seems to exceed all the other NiB BCGs I own. Great for precision builds but also performed flawlessly and stayed surprising clean during extended durations of suppressed high-rate fire. These Walker Defense Research BCGs consistently have less carbon build-up than my other NiB BCGs with all other factors being equal.
JG –
Looking to get the smoothest BCG..look no further. Amazing product for any build or upgrade.
Josh –
With so many AR15 bcg out there to choose from quality of the materials is important as well as craftsmanship. Walker Defense Research bcg checks all the boxes. Optics Planet customer service was excellent and my order was delivered in a very timely manner. Highly recommended.