does any one know anything about the XS-QB1?

[JJ]

  I have seen pics of one of these guns before, but I have yet to hear any opinions. Does any body have one of these?

[JJ]

   Thanks for the pic.
  I just purchased one off of the Yellow Forum Classifieds, Not sure what to expect.
-Velocity?
-Gas operation, can you fill with a pump, etc..?
-any recommended modifications/ improvements?
-general opinion of the gun?
any input would help,  looking forward to this, I have been fascinated with these for some time now.
Package should  be here Wednesday or Thursday, I will keep you posted.

[Bullit]

You could PM "mikeiniowa" for your questions.

[JJ]

Package came today!
     This is a very cool little gun! I love the wait and feel of it, short but heavy. 
  The condition over all was very good, and it came with the box and accessories. I would have thought NIB had it not been for the wear and tear on some of the screw heads. There was a little gas in one of the tanks that it came with, so I tried to screw in, in hopes of the gun holding air.... No such luck, the missing breach seal was the first clue. Air was leaking from the breach and barrel.  The internals look to be pretty dry over all, although I haven't pulled it appart. I am wondering  if a good Pellgunoil-ing and rapid dry firing  (a la QB-78 re-seal) would help to revive the seals..... I will need to do some sort of tear down inorder to get the Breach seal on, but It looks like a QB-78 breach seal may work, and I have one laying around here some were.
   If anyone comes across an exploded diagram of one of these that would be a huge help. I would like to have some idea of what I am getting myself into. It looks pretty simple from the outside, but I have been fulled by that before.
   I cant wait to get som pellets down range with this gun, it feels like the perfect carbine to me (minus scope mounts).
If anyone has any tuning input on these, I would be forever grateful.
   I will get some pics up as soon as I can.
JJ

[gene_sc]

Where can you buy one of these John?

Gene

I get the model numbers all mixed up, if it looks like this:

 I owned one and might recall a bit.
 John

[JJ]

   I finally had the chance to pull QB1 apart, It's pretty simple on the inside. I found the a crack in the main valve seal (as predicted) , and a missing breach seal, as the QB-78 seal was to big. Aside form that everything else was very clean.
  I took the valve seal to a local guy to se if he could make a new one.  As well as a few simple instructions on making a right angle "air source adapter" with paintball tank threads. This will work with a small tank (w/shutoff) or a single 12g CO2 cartridge holder. The right angle adapter, and 12g cart would act as a vertical fore grip as well. However with the 12g's I would need to empty cartridge before switching to another air source. Not a big deal considering the amount of shots I would get form 1 cart. I also had to buy a small paintball tank with a shutoff inorder to refill the gas bottles that came with the gun.
  In the meantime I thought I would try my hand at making a new valve seal my self. It seamed pretty simple, the valve stem had a 45 deg. "valve face" and the corrosponding bevel in the valve seal it self. I found a rubber plumbing seal at the hardware store, and with some exacto knife work I had a working valve seal. I am still waiting for the custom valve seal, I think my home made one is thicker, and maybe dropping the FPS a bit.
   The gun now shoots pretty well, but I can feel a little back draft with the missing breach seal. I think I need another trip to the hardware store to find a make shift seal, maybe a sliver of rubber tubing..not sure yet.

    shroud and scope rail are next on my list.

Sorry for the small pic. I am still figuring out how to link larger photos..
 

[lillysdad621]

I am with gene... where can i get one??? is a wannabe Gamekeeper... it looks sick!!!

[JJ]

Found mine on the Yellow forum, and I have seen them since on GunBroker.
Good luck, This one is proving to be lots of fun to work on.