450 Pro upgrade metal battery mount Sale! from 527 /per Qty. Add to Cart 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 metal battery mount is and essential upgrade for a Align Trex 450 Pro and will provide added rigidity for extreme 3D flying. Compatible with - Align Trex 450 Pro and many other helicopters Qty available:1 SKU:450-016B