Wolverine Quake HPA Recoil Stock for M4 (Stock / Spartan Board) Set:Stock w/ Spartan FCU Board Attaches to flat top picatinny

Attaches to flat top picatinny rail to raise line of sight by

Excellent Craftsmanship by Tokyo Marui as usual

Full length railed dust cover

25g Competition Grade 6mm BIO BB 1KG Bag are BB's created by G&G (Guay Guay)

Wolverine Quake HPA Recoil Stock for M4 (Stock / Spartan Board) Set:Stock w/ Spartan FCU Board Attaches to flat top picatinnyDesigned 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