SpudFiles

I was thinking about building an bbmg and was wondering what size pipe you guys use for the barrel. Oh yeah i wanna shoot 6mm airsoft bb's. Thanks!

use 6mm copper pipe, or 1/4" CPVC but im not sure about the CPVC i havnt tried it before

Im from the U.S. and I don't think they sell 6mm coper pipe in U.S. Is there any other sizes for copper that a airsoft bb will fit. But thanks for the info.

I can get all sizes of tubing at my hardware store, try there.
Also, if you want to make a vortex BBMG I can make the vortex for you.

Hey ill check that out.
And about the vortex Thanks but no thanks. If i do ill probly try to make it myself. Im thinking i might make a bolt action now not a bbmg.

and for the copper pipe try 1/4" copper which is roughly 6.25mm

Or use 9/16" aluminum. It is not as strong as copper but I use it for all my air soft projects! Find it at ace hardware. Comes I think 3foot sections for about 1.50$

Use 1/8 copper, not 1/4, 1/4 is too big.

but isnt that 4mm?bbs are 6mm.anyway 1/4"copper would have a .25mm gap.

MrCrowley wrote:use 6mm copper pipe, or 1/4" CPVC but im not sure about the CPVC i havnt tried it before

i have 1/4 inch cpvc in my hand and an airsoft bb, the cpvc is way too big

copper pipe is different.1/2" copper pipe is 12mm,while cpvc 1/2" is 14mm in NZ.

yeah... well he should go with copper anyways, when you get down to the small pvc/cpvc it starts to bend a lot, causing inaccuracy.

Dude.... 1/4 brakeline from autozone... like $3 for 4 feet.
Pressure rated to 1000+ psi

or 6mm brass tube
or styrene tube
both can be found at most r/c hobby shops