Brand new Demolition Ranch/F-1 UDR-15. I have two of these, I don’t need two. You need one. This one. Wired for buffer tube battery, deans connector. I don’t have a deans battery, so I have not test fired this. It is brand new though. List price on Evike of $425. Get it from me for much less. Buyer pays shipping. Willing to trade to local buyer for KC-02, sniper rifles, something I don’t already have, etc.