Springer Precision extended basepads for FN FNS 9/40 are CNC machined from USA 6061-T6511 aluminum and hard anodized for lasting durability & long service life.  The basepad lengthens the magazine .25" to allow for easier, more reliable magazine changes. They also allow you to use a magwell without adding capacity to the magazines. They are perfect for IDPA ESP and USPSA. 

Due to design variations, Springer Precision cannot guarantee compatibility with any other manufacturer’s after-market magwell, unless otherwise specified. Please call us with any questions.