The Madbull JP Gas Block Kit is truly one of a kind in the airsoft world. It allows you to have 4 different lengths of outer barrels without the price of 4 new individual outer barrels. Even though it is a 2 piece barrel, the Madbull JP Gas Block Kit uses large threads and a set screw to achieve the sturdiness of a one piece barrel. It is light weight in comparison with other one piece barrels and is constructed with aluminum. This kit will allow you to use almost any rail system in the market and be able to switch outer barrels at any time without the hassle of removing the rail system first.

Madbull Gas Block Kit w/ JP Comp for JP12F
Adjustable length
Light weight
Constructed with aluminum
Black oxide coating
Mock Gas tube included
Sturdy construction
2 piece design with a 1 piece feel
Stress free barrel extension assembly

Package include:
Barrel Base
Gas block
Barrel Extension(s)
Flash hider
Mock gas tube