Byrna Pro Tip: Mission 4 Proper Magazine Loading | Self Defense Mall
The mission 4 magazines are the highest capacity magazines in the Byrna arsenal holding 19 rounds each. To assure you are able to utilize that entire capacity you need to make sure your loading magazines properly.
Before loading the magazine, start by turning the follower tension screw until it stops. You should see the follow back down into the body of the magazine. Then you can load the rounds directly into the magazine. Once you insert the magazine the loading mechanism will release the follower and allow the rounds to be fed into the chamber.
Make sure that if you wind the follower tension screw, you load rounds into the magazine before inserting the mag into the launcher to avoid damaging the follower.