Umarex HDR68 complete tear down, upgrade, and rebuild | Time to take her down to the nuts and bolts! 

Well done and definitely needed by the Umarex community. How about a technical video on how the CO2 moves through an HDR68 (or similar) showing where the air is under pressure and held until the trigger is pulled opening up the valve sending the gas through the launcher? This might help us understand leaks and how to fix them. Good work!

Great video and clarified a lot of things. I actually got good at it when I started to wonder why it was so hard before, but you are an artist. Thank you again for the great video!!

Great video as always. I have a HDR68, HDR50 and HDS68 needing an upgrade. Thanks for the rundown on the HDB68.

Thank you Jon! Looking forward to what's cooking tomorrow!

Great video .. just did mine this morning and WOW what a difference !! Thank you again !!!

Perfectly detailed and helpful! Thanks a lot!

Well done on the teardown and explaination. Cool Motherboard Wall!

Very kind and knowledge able person! Highly recommended to buy from him if you are looking to buy air pistols - Professional and helpful!

Great instructions. You’re awesome brother

You are Great because you do indeed reply and some RU-vidrs don't

Great video as always. Cheers from your friend in Norway 😃

Thanks! Literally just took a crap on my Assembly gotta order springs and watch this again

Great video man

Awesome video brother 🤙 very helpful

Much appreciated, thank you!

Vieleicht kannst du dir meinen Kommentar übersetzen. Nachdem mir das ganze Innenleben der HDR 68 um die Ohren geflogen ist, habe ich mit deiner Anleitung alles wieder zusammensetzen können. Das hast du mit sehr guter Bildqualität und in den einzelnen Schritten super gut erklärt. Mit deiner Hilfe war das ein Kinderspiel. Danke dafür. Leider dürfen wir hier in Deutschland nur 7,5 Joule schießen, aber egal, auch das macht schon Spoaß. Viele Grüße von Oliver

Great video bro, your step-by-step guide will be so useful for many of us who like to mod things, thank you for sharing it! Great t-shirt too! (I am old enough to remember playing ATARI games on my parents' old TV back in the late 1980s...he he:-). The valve tool you've made also looks much better for the job (and most importantly, easier-to-use than a pair of pliers). When you put your creativity and skills to work, I can tell that you can make great things! All I cay for this great "hack" is that I love it, bravo brother!

Thank you for this video. I have my HDR68 to upgrade and was nervous to attempt it. There is a English guy in France who does not know what he is doing with the HDR68. To warn others. Also a RU-vidr.

Vielmals Danke für deine Arbeit und die Videos!! Hat mir sehr geholfen! ....mit meiner HDR50 hats auch super funktioniert. Mit meiner HDR68 leider nicht. Ich hatte auch das Problem mit dem Kleber, ich musste den Pin ausbohren. Und dann ist die Pigtail Feder gebrochen.....

my o ring popped, like 1 month into using the gun stock. called the seller, he said call umarex. I called umarex and was told, literally not joking, "we don't make the parts separately." its better as a wall deco anyway. thanks for making the video in future tense for others who will buy this revolver and have problems with it like i did. I wiill not be buying the pump action shotgun because imma guess the fishes you win at carnivals last longer.

It takes a lot of gee whiz to break those hard nylon balls!! Very potent!!

wtf this is a beauty room

Hi. Great video. Are you using the standard factory co2 restrictor?

Hey Jon, I think I will be ordering mine from you very soon. Hey quick question though. Does the little screw thing you put silicone on and put in with that long duehickey keep the CO2 from releasing until trigger pull??? If not what does if everything is removed???? Got my head spinning right now but going to watch again now. Please let me know and thanks alot My Man!

Hi Jon, hope all is well and everyone is safe, Great vid , Jon I would like to buy the value tool, please let me know how to go about getting this item Tks

Thank you for this. I am planning to get an HDR68 and modify it for more power...I am also interested in the valve tool and the mod kit. Can you direct me for some links for the tool and the mod kit? I know you are very busy, but your vids inspire me to try and have one for some non lethal protections before get a lethal one. My neighbors talk about non lethals along with getting a real weapon with conceal carry. Thanks again.

Very nice video, thanks for all the info and instructions! Got my HDR.68 today (7.5J version). I always thought there was a restrictor in the back of the tube for the CO2-capsule "ex factory" (as one of the measures to limit the power output to german legal 7.5J). The "power kits" available mostly do offer an alternative restrictor, and I had the impression that these had a bigger passage and were meant to be installed instead of the factory ones to get more power. However, when I looked into the capsule tube of my HDR, I was quite surprised to see that there is no restrictor at all and that it is actually completely open... I assume, the restrictor included in the power kits are there to prevent a blow-out of CO2, when the valve block has been removed. Can you confirm that?

Hay love ur work . i need mine fixed leaks . to out tge block .it kicks. But it leaks .can u fix it

I recently bought the HDB 7.5 joule version and the valve cover came off Very Easily. It was manufactured sept 2021 i think the box said. No Loctite, or battleship glue keeping it together 🤣 😂

I can't thank you enough! I just got mine today with the 16 Joules converter, I had no idea you had to take the entire gun apart. So I did start it out good but the little springs and Trigger mechanisms fell out and my heart sank thinking I just ruined my gun because I know nothing about guns! I searched on RU-vid how to do exactly what you just did on this video, follow your steps and I'm so pleased my gun is back together with the 16 Joules adapter and works excellent, I'm so thankful for your video I am new to this HDR stuff and I'm really enjoying it so far, I did order some ammo, I've been watching tons of videos if there's any ammo you can suggest that would be really good for home protection if I need it? Again thank you so much your video saved me from a lot of frustration, I can't tell you how much it means to me you did exactly what I needed to know

Does changing the pin which punches the CO2 Cartridge increase the power. I have seen a few adverts for "Upgrade" puncture pins. ?

Thank you for the vid, very detailed. Is it the same mod for both the

My triger pull on my hdr 68 feals weak compared to my other hdr 68 witch I's less use would you say springs need replacing

My cap came off insanely easy 🤷🏻‍♂️ the valve body however omg Soo stuck

Do you sell the valve keys still? I’m getting ready to do mine. Thank you much.

Awsome video, helped alot! I had the power kit V2 and didt finst shit. But after tuning it i han one prob. My mag would just spin randomly around after i did it. Cant fint what dose that?

many thanks, I've been looking for 2 hours how to put the f*cking trigger spring...

Lost my spring that goes in between the part right above the trigger. Any idea where I could buy one ?

Is there a mod kit you need to buy for this? If so do you have a link or reference? Thanks for the video!

Hi John, thanks for the instructions, I could manage to delete the restrictor and install a new power kit and resemble the pistol again. However, the copper valve, the one that is used to release the gas pressure, start leaking. If pressure it a little stop leak, and sometimes when I pierce the co2 capsule don't leak after all. Did you know how to fix that problem? Thanks again for all the tutorials.

thank you for your impressions. Did you work based on the 7.5 joule variant in this video?

I lost one of the springs. Where do I get a new one? It's the first spring of the video.

Are there any numbers to go with each upgrade? Mine didn't come with that disk with a pinhole in it at the bottom of the CO2 chamber (towards the top of the geip, rather), and I also removed the valve block. The pins are all the aame, however. I no longer have a chronograph. I'm curious how much power the disk and valve block delete will generate. Mahalo from Hawaii!

good video thx , I saw on another one of your video that there is the homedefence24 powerkit with an upgraded CO2 restrictor, is it ok to use that as well as removing the valve block?

What is the purpose of the co2 restrictor? If I remove the valve block, do I need to the restrictor too?

Can i ask a possible stupid question. Why does it have to have that co2 restrictor in it? Would it just dump the entire 12g in 1 go without it in. Only reason i ask is i just done your mode on the snowpeak 300

Do the flywheel supose to be free to turn when is on? when I use it with rubber ball shoot 2 with no problem but i can see the weight turn the flywheel it back shooting on blank on the next click.

If you were ever to do a in person class on modifying this canon, let me know I will be there, I'm legally blind and it hard to watch on video...

Where is the link for the tool you said you have for sale?

Jon, do you have a website yet?

With that setup can i still do the hpa setup?

Does this add power? can you link the parts please

Have you removed the link for the tool??

even gutted that is a sexey one. Even if there using the blue Loctite I am surprised heat didn't work maybe acetone or a bit of glassine. there's a package on the way you just might like LOL

Love watching u .but the T4E is trash. Didnt have qn seal .leaks .its trash. Could get it back back together so I just crashed and his peace is in the box if you don't charge that much to put the piece of junk back together I'll send it to you but if you want you can have it I would never buy another one they're trash only paid $139 from eBay but I'll never buy another one I would like to get a good home defense weapon you're going to have to spend a couple Grand to get something powerful and then you have to worry about taking apart to replace the seals and that's a pain in the ass once that trigger spring popped out it would never set right I spent an hour trying to get it done as it's trash Lake watching you but I don't think you should recommend people buy that because there's a piece of junk I know I have one and I went all out

friend I have seen all your videos and I have a final question, which is the best model for the defense of my home, the hdr 50 11j or the hdr 68? And I have another question, have you tried comparing those models with the HDP50? Which model of the 3 causes more damage on impact?