Trouble fitting G27 grip to VFC M4es

[Steviewev23]

Hi, so I bought a new element G27 grip for my VFC M4es recon, the grip fits onto the gun fine but I'm having trouble with the motor as instead of the motor base plate sitting flush with the bottom of the grip it sits right up inside it thus pushing the motor right in so no adjustment and no workies.

Upon searching I've found that VFC used a thinner standard grip to replicate real steel but surely this shouldn't have any bearing as the motor would be still the same?

Has anyone had previous experience with this? Any advice would be appreciated

 

Steve