You can become a Supporting Member.
You mean two of these?
Using 2x18650 in 2"C" M*g and ROP 3854 LO is smaller and easier to carry.Looking to buy 6aa to 2d holder that will fit standard mag and run a ROP.
Those won't handle the current of the ROP.
You need one of fivemega or mdocod's holders. (could also build your own battery pack if you can solder)
Fivemega,
DO you have a host or holder that will do 2s/2p 18650. Do they need to be IMR 18650 or will it fire up the 3854 with aw standard higher capacity?