Replacement ball bearings
 

Anyone know where I get source replacement ball bearings for a kings arms 120rd grenade and possibly a tech to fix it? It's just missing the ball bearings so won't hold gas.

Check Ebay, I found you have to get them from the UK...which sucks, take almost a MONTH to get them over here.

ehobby sells KA rebuild kits for the KA 40mm frags

Depending if you have the small or large bearings, small ones use 8 (2 per hole), large ones use 4 (1 per hole).

If I remember correctly, the small ones are 3mm, and large are 4mm.
You CANNOT use 1/8" bearings instead, as the hole is a bit too small for that.

Best thing to do is measure with a digital caliper. It's not extremely accurate, but plenty enough to find the correct size.

You can order some at McCarr
3mm-http://www.mcmaster.com/#9292K33

4mm-http://www.mcmaster.com/#9292K37

Thanks for the info. Wow 100 is kinda overkill for needing 4. Anyone else need some?

Yeah, but it's the same price as "airsoft" specific kits of 4...

Should have said that its a Chinese knock off with only 2 holes.

Still, if you have at least 1 bearing left, measure it.

Unfortunately I don't. Got it for $10 when I purchased my launcher. The guy I bought if off of said the bearings were easy to find and that I could get them from Toronto airsoft. Silly me.

Long shot but try canada bearing (Canadian bearing) in mississauga. They might have some loose balls...

oooooorrrrr buy the KA rebuild kit
http://www.evike.com/products/28558/
I believe they also have the bearings by themselves

Thanks all.

101, I have dail calipers in the shop, if you bring a sample, I can measure then and we can source the bearings together if need be