I just bought a LCT TX-S74U. I also bought a PTS AK grip, as the site that I bought it off reported that it is compatible with LCT replicas. Both the gun and the grip came in the mail yesterday and I noticed that one of the "teeth" on top of the grip interferes with the selector mechanism, preventing me from putting the gun on safe. Also, the hole of the bottom plate is slightly misaligned with the hole of the motor cage. Did I buy a useless item? Is there anything I can do to install the new grip properly and without issues?