Upgrade your semi-automatic rifle with the MSR Bolt Carrier Assembly with Gas Piston, engineered for reliable performance in both 7.62x39mm and 5.56x45mm calibers on standard long-stroke systems. This precision component delivers cleaner operation and enhanced durability for tactical and sporting applications. Key Features Compatible with 7.62x39mm and 5.56x45mm - Versatile design supports multiple calibers in standard semi-auto AK-style platforms. Integrated gas piston system - Directs combustion gases away from the receiver for reduced carbon buildup and easier maintenance. Standard long-stroke configuration - Optimized for reliable cycling in semi-automatic firearms without compromising function. Robust construction - Manufactured to exacting standards for consistent fit and long-term reliability under demanding conditions. Specifications Weight: 13 oz Dimensions: 14" L x 1" W x 1.5" H System type: Standard semi-auto long-stroke gas piston Caliber compatibility: 7.62x39mm and 5.56x45mm Why Choose This Product Traditional direct impingement systems can introduce fouling directly into the action, leading to frequent cleaning and potential reliability issues. This bolt carrier assembly with gas piston addresses that pain point by keeping the operating system cleaner while maintaining smooth, consistent function. Ideal for shooters who prioritize low maintenance and dependable performance in tactical or range environments. Benefits at a Glance Minimizes receiver fouling for extended shooting sessions Supports dual-caliber flexibility without additional modifications Enhances overall rifle longevity through reduced wear on internal components Designed for seamless integration into standard semi-auto platforms Invest in a component that combines precision engineering with practical advantages for your next build or upgrade.