Is there some sort of rigid tubing with a 40 mm interior diameter to fit an airsoft grenade?

What material, size and thickness of tubing (pvc, abs, copper) would be necessary to fit a 40 mm airsoft grenade inside of. It would need to be either 40mm exactly or slightly larger, although I'm not sure how much larger it could be.

L.E.D. hero6 years ago
1 1/4 pvc has he exact internal diameter of 40 mm but i would suggest using larger pipe because (1) if your looking to launch rockets they have a 2" diameter, and (2) the 40mm grenade is slightly larger, making putting it in a tight squeeze. look at the airsoft m72 LAW coupler thats at the end of he tube that says fernco proflex 2" copper to 1 1/4 pvc, that works like a charm. good luck