OMPHOBBY M4 Helicopter Tail Bellcrank Base(Silver)OSHM4031S Sale! from 584 /per Qty. Sold Out This is a replacement Tail bell crank base for the OMPHOBBY M4 Helicopters Contents Tail Bellcrank Base-1Socket cap screw M2x6-2 Qty available:0 SKU:OSHM4031S