The Mission First Tactical 10PM556BAG-BL Magazine delivers superior reliability for high-performance firearm enthusiasts. Equipped with a long-life stainless steel spring and advanced four-way anti-tilt follower, this magazine ensures seamless feeding in critical scenarios. Designed for efficiency, the oversized bolt catch notch promotes optimal bolt operation, while the tool-less disassembly feature enables quick maintenance and ammo changes without hassle. Long-life Stainless Steel Spring Flared Floor Plate Four-Way Anti-Tilt Follower Drain Hole Experience enhanced magazine performance with the Mission First Tactical design.