OMPHOBBY M4 Helicopter Main Rotor Grip Arm Set(Black)OSHM4010B Sale! from 1208 /per Qty. Sold Out This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. This is a replacement main rotor grip arm set for the OMPHOBBY M4 Helicopters Contents Main Rotor Grip Arm -2socket cap screw M2.5x6-4Swashplate Spherical Joint Φ8*Φ11*6-2 Qty available:0 SKU:OSHM4010B