Hatsan Jet I/II Discussion

[Insanity]

I suspect you can probably order a toob with reg and valve because Hatsan made it that way from the start.

[Back_Roads]

 Well since I got a
Notos my Jet 1 has sat idle, but my need to use a .25 hand hammer has not occurred either

[ar6man]

I suspect you can probably order a toob with reg and valve because Hatsan made it that way from the start.

I'm on my third firing valve pin, second replacement after the original failed. I guess I'll see how this one goes. If it fails again, I may follow your advise and order an entirely new air tube assembly. What I'd love to know, however, is if what I'm experiencing is being experienced by anyone else? I shoot this pistol A LOT and am experience firing valve pin failure after ~500 shots. It doesn't sound like it is a common issue which implies that the issue I'm having seems to be connected to my gun only. I'd really love a step by step procedure that shows me how to replace the firing valve myself though as it's a PITA to have to send it back to HatsanUSA every time this happens. I don't mind doing that right now as the pistol is still under warranty, but I don't want to have to keep doing this after the warranty expires, as that'll start to get expensive. If I didn't LOVE this pistol, I'd just walk away, but it's the best PCP pistol I've ever had for offhand shooting as it's so light, fits my hand well, and gives me 30 useable shots with no noticeable point of impact shift out to 25 yards when talking 6" by 6" square steel targets. It hits HARD. 

[Rogerlj]

I suspect you can probably order a toob with reg and valve because Hatsan made it that way from the start.

I'm on my third firing valve pin, second replacement after the original failed. I guess I'll see how this one goes. If it fails again, I may follow your advise and order an entirely new air tube assembly. What I'd love to know, however, is if what I'm experiencing is being experienced by anyone else?

I had the same problem with mine after many many hundreds of rounds if not thousands. I’m fortunate enough to own a machine shop so I just built a replacement in a couple hours. I posted it on the FB page.

[Insanity]

A lot of us do not use FB. What did you make the popit out of?

[JPSAXNC]

If you make a new stem, it's best to make it the exact diameter of the hole it fits in. When the hammer strikes the stem the stem will take the path of least resistance before it moves forward. If there is any free play around the stem it will be knocked sideways with force. This also robs considerable hammer energy before the poppet moves forward. Just a heads up.

[Rogerlj]

@Insanity I machined the replacement out of 4140. So far it’s holding up great.

[Insanity]

@Insanity I machined the replacement out of 4140. So far it’s holding up great.

Thanks and FYI the @ dose not send an alert like some forums do.

[Rogerlj]

I see that now. Habit I guess.

[Back_Roads]

 Well the tinker bug hit my Jet 1 .25 is now a bottle baby  1800 psi 25.4 gr AA 500 fps. I did move the reflex sight to the back rail as I was getting POI shift, all better now.
 Will have to test more ammo choices again lol, nice having a long regulated shot string and a Vectis mag.

[EdinGa]

Well the tinker bug hit my Jet 1 .25 is now a bottle baby  1800 psi 25.4 gr AA 500 fps. I did move the reflex sight to the back rail as I was getting POI shift, all better now.
 Will have to test more ammo choices again lol, nice having a long regulated shot string and a Vectis mag.

Looks great to me! I was loving mine at 800 psi until the stem broke. I've hopefully got all the parts and tools enroute to get it shooting again.

[Back_Roads]

 I would like to get a bottle clamp from the tube to the bottle to give a more ridged setup, time being I have a chunk of stiff black packing foam wedged between the bottle and tube, helps some.

[avator]

I would like to get a bottle clamp from the tube to the bottle to give a more ridged setup, time being I have a chunk of stiff black packing foam wedged between the bottle and tube, helps some.

I'm sure one of our 3D printer guys could hook you up. You'd need to take measurements and draw something up.

[EdinGa]

I used a m10x1 male to 1/8 female npt adapter then a double male npt to my ASA. I'm not sure if it's the ASA or what but my bottle slants up towards the tube. It's really rigid though. I was going to use a band or strap, but I really don't think it needs one.

[JPSAXNC]

I ordered a couple of barrels to turn down .22 and .25, I'm thinking of making 12" barrels for my Jet and make it more of a carbine. I don't use it in pistol form.

[EdinGa]

I ordered a couple of barrels to turn down .22 and .25, I'm thinking of making 12" barrels for my Jet and make it more of a carbine. I don't use it in pistol form.

That will be interesting to see. Fowler Airguns on YouTube put a long barrel on his Jet 2 and he seems to like it. Mine is mainly going to be a close range barn gun so the compact size is what I want.

[Back_Roads]

 Ended up scoping the Jet1 .25 , so far so goodish 

[naptemp]

Ended up scoping the Jet1 .25 , so far so goodish 

The Hatsan Jet with a bottle is very tempting to me.

What parts did you use to add the air bottle?
Can you show more photos of the drop block/air tank?

[avator]

Ended up scoping the Jet1 .25 , so far so goodish 

LOL... looks like something the Swiss Army Knife folks made. Where's the can opener?   

[Back_Roads]

 Here is the other side, it shows the fittings,,,,, here are some links, I had to add a female foster to the bottle valve. Just a quick cople to make the mod reversable in minutes.


www.amazon.com/Manloney-LLC-Universal-Paintball-Quick-Disconnect/dp/B0912BVRHT/ref=sr_1_10?crid=RA4A8CRD6ZPF&keywords=female+male+foster+fitting+hpa&qid=1701782140&sprefix=female+male+foster+fitting+hp%2Caps%2C250&sr=8-10
www.amazon.com/Heyxire-Paintball-Adapter-Compressed-Station/dp/B09PR7VR32/ref=sr_1_2_sspa?

www.amazon.com/Alien-Play-Paintball-Compressed-Regulators/dp/B0951WKTJZ/ref=sr_1_54_sspa?

www.amazon.com/TUXING-Paintball-Regulator-Industrial-M18/dp/B0C4XF5M35/ref=sr_1_1?