In this "Full Auto Fun" video I bring out my RAP4 - RAP5 MP5 Full auto BB Rifle. The RAP5 MP5 started out life as a .43 caliber paintball gun but I bought it converted in the factory to 4.5mm Steel BB. RAP4 converts it by adding a barrel sleeve adaptor and includes some plastic casings that allow you to place 4.5mm Steel BB's into a kind of donut shaped shell that is then placed into the 21 round magazines. The plastic Donut BB shells eject from the gun like a real shell casing which is super cool! Read full article here: https://www.replicaairguns.com/2014/7/25/rap4-rap5-mp5-45mm-steel-bb-modified-full-auto-fun.html Buy Full Auto BB Guns in the Canada Store: https://www.replicaairguns.us/search?q=full+auto Buy Full Auto BB Guns in the US Store: https://www.replicaairguns.ca/search?q=full+auto