Big Nasty 26650 by fasttech
well it’s big but not so nasty good threads, and copper pins so it hits good and hard.
good airflow channels on the top cap and a nice smooth locking ring
and how it looks with a atty on top.
with 26650 on board this could be the answer to all those moments you run out of battery, and because of the shape it feels so nice in the hand. https://www.fasttech.com/p/1693400 £14.38 freepost