Airtech Studios Krytac Trident MK-II M PDW Series Battery Extension Unit

"Added this to my Krytac Trident Mk II PDW M, you lose the ability to collapse it but to run an 11.1 Lipo, but well worth it! For my size and arm length, I wouldn’t run it closed anyways and can push it in about an inch after installed.

"getting it to work was kinda a pain in the butt but it was worth it I had to oil up the stock and the inside of the stock extender thing and had to shove it in because too much friction caused it to be pretty hard to put it in but after that it worked as intended.

"So I bought this recently for my PDW-M, it fit nicely but is still a little bit of a struggle to get it to snap in. You lose the ability to collapse the stock but for extra battery space it is worth it.

Unfortunately after a bit of manhandling from taking it on an off to put new batteries in the polymer piece that physically locks the extension into the Krytac stock snapped off making it unusable.

I'm going to chalk it up to user error, however if you do buy this keep in mind the polymer pieces may break off.

If you don't decide to purchase this I can recommend a couple batteries for this gun that I have bought and that fit inside the stock without the extension:

https://www.evike.com/products/78785/ --- Intellect iPower 11.1v 1000mah 20C LiPo sold here on Evike. These fit perfectly without the extension. Any LiPo that is this size will fit perfectly. I personally bought two as to swap them out on the field because 1000mah isn't a ton.

https://www.evike.com/products/17764/ --- Titan Power 7.4v 3000mah 16C Li-ion also sold here on Evike. These fit as well, just be sure to not crimp the wires too much while putting it inside the stock.

"The lock tab or clip is weak and broke the day I got it don’t miss waste your money