40mm Grenade Questions & Answers

[Turk]

A few questions, regarding 40mm grenades.

1. Does anyone know the correct size O-ring for each, Pro-Arms Grenades and King Arms grenades respectably. I should say I am looking for the inner O-ring. I have tried #13s and they are a tad to big and as much as I like guessing, I thought I would ask first.

2. The gas intake valves, are these a special size (again for both Pro-Arms and King-Arms) grenades. I have tried to mix and match and it seemed to work as far as size goes, but that might have just been the plastic threading being ruined in the Pro-Arms shells.

3. Is there any place that would have the 40mm Ball bearings other than online, just thought I would take a shot with this one. I have tried home depot, ACE hardware was closed by the time I got there, so I will check tomorrow ( May 18th). Also I will be looking for the valves, again Home Depot said they had never seen these kind before, so I doubt ACE will give me any better luck. Still if anyone knows a place I would not mind knowing about that at all.

Thanks in advance for any help here.

[cqbr]

Can't answer them all but...

1. I've tried looking in most hardware stores for them....no dice.

2. If you're asking about the O-rings, I get mine from some emo body piercing website. I think they're size 16 or 18. If you're asking about the valves, no they're not a generic valve you can find anywhere but an airsoft store.

3. Haven't looked, but ACE/Tru Value/Whatever is your best bet as Lowes and Home Depot usually NEVER have that kinda intricate stuff. Another thing you might wanna try is a generic BB as I have a couple shells with ball bearings that are about that same size.

[Turk]

Right so after a stop at ACE hardware I found some answers to my questions I figured I would post so that everyone has access to the information.

The correct size O-ring is size #8 I bought 1 from every size #10 down to #5 and found out that way. You need to grease it up good when putting it on its a tight fit, just as it should be to get a good seal.

As for the valves no it seems they are one of those very specific items that would only be found online.

The ball bearings I can say ACE hardware does indeed carry them, the size for any airsoft grenade that takes 40mm is the smallest size that ACE hardware carries, and at $0.20 a pop it is much cheaper than buying them online.

Hope this helps a bit.