FN 502 Black 22 Long Rifle Rifle Magazine - 10 Rounds - Constructed of a lightweight, yet durable polymer, the FN 502 .22LR 10-Round Magazine is a factory OEM rimfire magazine, designed to deliver superior reliability and unparalleled corrosion resistance in virtually any environment. This magazine features a built-in side loading button for quick, effortless loading, while the loading channel serves as a witness window for quick, visual round counts and improved reliability while on the move. The steel wire spring and anti-tilt polymer follower work in tandem to deliver smooth operation and jam-free feeding performance, while the blued steel feed lips offer a precise fit for added reliability. Features Made in the USA ; Lightweight polymer construction; Steel wire spring; Anti-tilt follower; Side loading button for simple loading; Blued steel feed lips;