Wolverine Quake HPA Recoil Stock for M4 (Stock / Spartan Board) Set:Stock w/ Spartan FCU Board ***Plug n Play Mode -

***Plug n Play Mode - is not necessary to modify original installation

Not at all

each colour has 3 brightness settings

Excellent Craftsmanship by Tokyo Marui as usual

Wolverine Quake HPA Recoil Stock for M4 (Stock / Spartan Board) Set:Stock w/ Spartan FCU Board ***Plug n Play Mode -Designed to work with any Wolverine Airsoft HPA engine, the QUAKE stock adds an extra level of realism which was not available with any Electropneumatic HPA system until now! Technical Notes: The QUAKE stock does require permanent modification of the gun, and we will provide a detailed video tutorial on installation. Wolverine Airsoft is not responsible for parts falling off, breaking, etc. from the recoil which most AEG's are not designed to for. We