Knex Breech Load Mech + How to Load

Haven't built rest of gun but also i invented the low piece barrel in the design

Step 1: How to Load

Pull back middle yellow rod insert blue rod push in about a half inch and push yellow rod back to load

Step 2: Stuff

Ok so this is my knex breech loading assembly it isn't unique but the barrel is feel free to use but give credit and put pics of finished product in comments