Replacement parts for servicing your Calico 9mm 50 round Magazine after 250 uses or 12,500 thousand rounds fired. To help keep your Calico 9mm 50 round Magazines running at peak performance, the Drive Spring Assembly should be replaced after 250 uses or 12,500 thousand rounds fired. If you use FMJ ammo exclusively, we recommend cleaning your Magazines after every 50 uses. Using lead bullets may necessitate more frequent cleaning. Detailed maintenance instructions for your 9mm Magazine are available online. Part # 9-MR-100 This Kit Includes:
1. 9-200-100-S X1 Spring Splined Driver Assembly.
2. 9-201-100 X1 Fluted Cartridge Carrier.
3. 9-204-03 X1 Feed Lip Springs