FN 509 Compact 9mm 15 Round Black Magazine W/ Sleeve

Constructed of heat-treated stainless steel with a corrosion-resistant finish, this factory OEM magazine delivers long-lasting durability and superior crush resistance for reliable field performance at an affordable price. The steel wire internal spring and anti-tilt polymer follower work in tandem to deliver smooth, jam-free feeding, while numbered witness holes allow for quick, visual round counts in the field. The flush-fit polymer floor plate integrates with your pistol's frame for snag-free