PMAG plus 5 instructions

1. Remove the factory base plate from your magazine.
2. Take off floor plate from spring.
3. Depress the spring into the magazine with your finger and slide
   the magazine into the extension.
4. Push the magazine into the extension until you hear the spring
   drop into the extension.
5. Screw down locking screw flush with extension.
6. Note: Fits Gen3 10/20/30/40rd magazines only.