Maple Leaf 6.04mm Crazy Jet Inner Barrel for Marui/ WE/ KJ Works Hi-Capa 5.1/ 1911 GBB (113mm) Length-(mm)_211mm The pouch's tension can be

The pouch's tension can be adjusted via a bungee cord

Specially designed grooves will create an air cushion that will guide the BB while shooting out of the barrel eliminating the contact of the BB with the barrel itself therefore eliminating the deviation usually created by it

why use a stock gas block when you could use something like this

the parts that are likely to wore out are made of steel or metal alloy

Maple Leaf 6.04mm Crazy Jet Inner Barrel for Marui/ WE/ KJ Works Hi-Capa 5.1/ 1911 GBB (113mm) Length-(mm)_211mm The pouch's tension can beMaple Leaf 6. 04mm Crazy Jet Inner Barrel for Marui WE KJ Works Hi Capa 5. 1 1911 GBB (113mm) Suitable For Tokyo Marui WE KJ Works Hi Capa 5. 1 1911 Series Airsoft Gas Blow Back Designed a barrel where the end is wider compared to the rest of the barrel. At the end of the barrel the air will pass the BB and come out first and when the BB comes out of the barrel, the air stream pulls the BB in a so called jet stream. This will have less resistance on