A-Plus - Hop Rubber (for GBB Pistol, Marui/We/KJ) (New Version) Adaptive Rail System - Suitable for KSC MP9

- Suitable for KSC MP9 Series Airsoft Gas Blow Black Submachine SMG Gun

On frame magazine release and ambidextrous thumb safety with beaver tail

- For 20mm Rail

Non Slip Mega-Lock Texture Grip offer firm hold of pistol with gloves on

It is also used by law enforcement and military organizations worldwide

A-Plus - Hop Rubber (for GBB Pistol, Marui/We/KJ) (New Version) Adaptive Rail System - Suitable for KSC MP9Specification: 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