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Pcp Conversion Kit For Qb/xs 78


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I converted my xs79 over to HPA £45 for regulated buddy bottle normally used for paintball, easy as peas! The stock is modified but it works on the standard rifle. Once fitted properly works just like a PCP .

 

 

Cheers

 

Tony

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Edited by TonyHunterSBT
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George - if yo remove the brass adaptor the threads in the 79 are paintball threads so the buddy bottle fits the same. The rifle was originally designed to run off a 9oz paintball co2 tank but they are no longer available in a small enough diameter to fit beneath the barrel without fouling it, the black fill block which the brass adaptor fits into is a female paintball thread. To fit the HPA tank you need a 13ci 3000psi model from a paintball shop, mine is a guerrilla air model. You need to remove the barrell to screw the bottle in and shim it up to fit without so the fill nipple doesn't foul the barrel, this a I is less than 2'' diameter so leaves clearance for the barrel.

 

I do buy and convert these guns as a hobby, if anyone has any unwanted working or otherwise xs78/79 I am interesting in purchasing them.

 

Check this thread for more onfo a rifle I converted,

http://www.gatewaytoairguns.org/GTA/index.php?topic=40331.0;prev_next=prev#new

 

 

If you have any questions about the conversion please ask!

 

Cheers tony

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Edited by TonyHunterSBT
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I think iv explained things a bit wrong, the brass adaptor in the gun as standard needs removing to fit a HPA tank. This conversion only works with a xs79.

 

Step 1 - remove brass adapter from gun just pass a screwdriver through the holes and unscrew.

Step 2 - remove the barrel - by removing stock, barrel band and grub screw in barrel it then pulls out if the breech.

Step 3 - screw in the HPA tank and shim it so the fill nipple doesn't get in the way of refitting the barrel.

Step 4 - reassemble. Have the tank filled up

 

 

 

Be careful of power in increases, air is thinner than co2 and gives more power so can easily run over 12flb

 

I get around 100 shots per fill minimum maybe more I haven't counted.

 

post-49830-0-40338000-1360664479.jpg

Xs79 air rifle

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13ci 3000psi HPA tank for paintball

 

Cheers

Tony

Edited by TonyHunterSBT
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