What you need.
1. Needle nose pliers and Wire cutters.
2. A Magstrike.(No Brainer)
3. Craft foam.
Step 1: So unscrew your gun.
You will need to use a small flathead screwdriver to pry it off. Be careful.
Step 2: Taking out the trigger saftey.
After uncrewing the plate take it off. there should be a thing with a wheel on the end take it out and screw the plate back on.
Step 3: Modding the bladder.
First, take the bladder out.
Second, there should be a whiye plasitc cylinder take it out.
Third, there is a bunch of barriers cut them out with pliers.
Fourth, fill the rough edges around the bladder with foam this is not optional.