A-Plus - Hop Rubber (for GBB Pistol, Marui/We/KJ) (New Version) Adaptive Rail System - For 20mm Rail

- For 20mm Rail

Steel Metal Slide and Stronge Spring recoil

The PP-19 Bizon ("Bison") is a 9mm submachine gun developed in the early 1990s at Izhmash by a team of engineers headed by Victor Kalashnikov (son of famed AK-47 designer Mikhail Kalashnikov)

- Suitable to fit inside your plate carrier

On frame magazine release and ambidextrous thumb safety with beaver tail

A-Plus - Hop Rubber (for GBB Pistol, Marui/We/KJ) (New Version) Adaptive Rail System - For 20mm RailSpecification: Material: Polymer Description: Hop up, (High Operation Power Up), is basically describes the back spin trajectory of an BB pellets, by adjusting the Hop Up to increase their range and accuracy. As the pellet shoots through this hop up bucking, the friction creates the spin, it tends to roll and backspin. Tokyo Marui's flat hop up system used to be really good Hop up bucking and nub, however this A+studio hop up came up with this