we g36 drum mag
 

hello ladies and gents,

after recently becoming the owner of a WE g36c, to replace my m4, i decided i wanted to upgrade it to a full sized mg36.
(if the mg36 is its name or not i dont care, theres a thread for that somewhere already)
but after hearing that WE and most likely other manufacturers will not be producing a gas drum i decided to make one myself.

i have my basic idea of the parts i need made however i wanted to see if anyone has had any experience with the sites
that take your CAD designs and then send you the machined parts e.g. emachineshop.com

are you planning to make an external air source ?

im currently planning in internal source, due to the design of the we g36 mags and there 3 parts my idea is to take the original top part and add custom parts below it and fit it into the drum mag

well, thats just what I think so don't quote me on that but:
an LMG fires a lot...like....A LOT, so wouldn't the internal source cause too much cool down ? The only GAS LMGs I ever saw where all external air source

yeah, it depends on how many rounds you are planning on carrying in the mag. A saw has 2500 rds at it's disposal for a reason, and even if you are shooting for the real cap 100 rds, you'll be hard pressed to get the gas you need to fire it in the mag. I'd suggest moddifying an existing mag to an electric winding cmag, and exchanging a feed valve for an external gas tank

i did think about the cooldown, for the lose in efficiency i wont be going around hosing all the time, just burts. however if because of the larger capacity of gas it still coolsdown alot i will see about a highflow valve

With an external air rig, cool down is less of an issue and gas for a 100BB is going to be hard to fit in an internal gas tank within the drum mag.

4 x the gas capacity to fire 100 rounds certainly seems within the realm of possibility. Feeding , should not be an issue , there are lots of midcap mags that carry more than 100 rounds.

and contrary to what some may say.. you don't need a boxmag of 2500 rounds to be a support gunner.

Don't listen to the neigh-sayers, see if you can do it!!

I have been working on one for the past month for my M4, basically I have one drum with a cylindrical tank holding propane, and the other with drum with the feed.

I took a long rectangular plastic tube, heated it up and bent it so it spiraled into the left drum. I don't have any special parts, just used an old CO2 mag and the external shell of a DBoys BETA mag.

thanks for the support

i also have a dboys mag on the way for the basis of my mag, with you pipe for the bbs how well do they feed with the almost 90 degree from the drum portion to the upright mag

There is quiet some space between the dram and upright mag, I have a nice 3-4cm radius curve going through to the top.

For the cooldown there is an obvious solution :
You have plenty of space in a C-Mag so you may do like on the electric model store BB on one side, on the two it would be a serious pain in the ass I think, and put the gas tank on the other half (or both sides actually). Because of its size you may be able to use either multiple CO2 pellet or more interesting in my opinion : make the wall and seal thick enough for to be filled either with the Madbull tool (still CO2) or the best : use a compressor to fill it with compressed air.
Then bye bye cooldown ;)

Would a 3.5 ounce tank fit transversal?

http://www.clevelandfx.com/images/grapgun/CO2.jpg

im thinking of filling in half of each side with a chamber that will fit up to the wall of the platic mag to balance the weight then theres room for the bb feed tube but still lots of capacity

whats the height on the tank?