Polar Star APS UAR Conversion Mount

Now you can Polarize the APS UAR with our specially designed cylinder mount. To attach, simply remove the receiver cover latch track from the rear of the engines cylinder and then use the same button head screw to attach this mount to the front cylinder assembly of our Version 3 Fusion Engine. That is all you have to do and it's ready to drop right into the UAR! You don't even have to change the nozzle since it uses the same AK nozzle the Version 3 comes standard with!