G-Force R50, E550, E620E Mixer Arms:

. Configured for aggressive 3D flying
. Up to +/-13 degrees for your collective
. Uses your stock bearings and pivot balls.
. Uses the d4xD7W2.5 bearings from your stock mixers.
. Designed for the G-Force Tuner head but will work with stock TT head.

(Bearings/pivot balls, screws not included)