They are no good.
I bought one off Vector Air and the 'seal' blew after a few bottles of gas, maybe 3 8gram cans then a couple of 12s then back to 8 and ... leak.
Sent it back.
It was returned with a new seal installed, alledgedly, and it still leaked. Then Vector ignored me.
Then I wrote to Alias in Canada.
Long one short: Their man there 'Dave' eventually sent me a new one for free. straight out of the box ... it leaked with the first 8 gram can. Same withg a 12. then it won't puncture an 8 and the 12s leak.
I have tried pretty much every cartridge seal that there is to buy and then some extra bits off of ebay that aren't technically CO2 can seals but are of similar dimensions and materials, loads of 'em and nothing works.
The second one isn't as bad as the first though as it will still fire all types of projectiles, but it hisses because of the leak and doesn't last very long. At first, I couldn't hear the leak in gun 2 though, but it emptied without being fired, so ...
Those blowfish caps didn't work in either gun though, although PTFE did do with gun 1 wearing 12 gram cans but not for long. Matbe 2 cans.
Gun 1 when loaded with a capsule instantly evacuates all the gas when it is pierced, so it isn't only the can seal that ois ****ed on that piece, all of the upper valve/firing pin assembly must be trashed.
Gun 2 still works with a 12 gram can but leaks.
'Dave' at Alias also ignored me after a week or so of 'two and forth' trying to address the problem.
So, it is my contention that these things are no good at all. The only videos available are from people trying to sell them, or one hitters on you tube that never follow up. When I mentioned these things and more to Dave at Alias is when he blanked me.
They know these things break and they should be pulled. Bad design. Can't admit that one though can we Alias?
And the 'strange' thing. My old gun 1 from Vector Air had a newer serial number than the replacement new gun 2 from Alias. So Alias stock is holding older models than vector is selling. Or folks send them back because they don't work.
There we go then, I have two little GEMs (and all the other crap they sell to use different ammo) neither of which work properly and neither the vendor or manufacturer want anything to do with them/it since being payed.
So my advice?
Don't buy one.
Merry Christmas everybody
