Umarex Origin: Strip Stak Pak Install

A step by step video tutorial of how to ventilate and install the HP Air Stripper, Stand Off, and Baffles.
UPDATE: The newer Origin/Avengers have a screw-on barrel shroud and an end cap that is a two-piece unscrewable but the STP still fits and works without an issue. unscrew the shroud rather than the little screw shown in the video and simply unscrew the battle washer array off the end cap and you are good to go.
A six-piece kit that includes an efficient multiport air stripper that strips and channels air away from the pellet to allow for a more stable and less turbulent pellet launch from the muzzle. The kit also provides baffle chambers to help remove both noise and turbulence in the air stream. The end result is a more laminar air stream which reduces projectile instability and as a secondary benefit, reduces the report of the rifle. Air Stripper comes with o-ring and silicone grease for installation.
hajimotoproduc...
There is also a Strip Stak Pak for the Air Venturi Avenger
hajimotoproduc...
DISCLAIMER: This video is meant for educational & documentary purposes only. All work on airguns and airgun accessories should be carried out by a proficient licensed professional. Hajimoto Productions Channel will not be held liable for any injury or damage resulting from attempting to duplicate anything shown in this video. By viewing this video, you are acknowledging the contents of this disclaimer.

[@HajimotoProductions]

Sorry Guys! I reposted the video because the wrong version was uploaded which had the overhead camera reverse imaged which could be confusing when looking at rotational instruction like screwdrivers, allen wrenches and drills.

[@AgentM3tallion]

@@timmy4539 I second this question! Also, I just ordered my haji gauntlet .25 last week; Pretty stoked!

[@skinnymitchairgunbrotherho7152]

Love your dedication to the Airgun world.

[@HajimotoProductions]

Thank you bruh!

[@ArmanMnatsakanyan]

Excellent work! Could you please, make a video on complete disassembly of Umarex Origin? There is no schematic ANYWHERE which makes fixing it a royal nightmare.

[@HajimotoProductions]

Thank you for the support. I think if you watch my friend Steven's (Air Velocity Sport) video on the Nova Liberty, you will learn all that you need to know about the disassembly of the Avenger. kzbin.info/www/bejne/lYrdk2mOr7apitE

[@renterp]

Another fantastic Hajimoto Productions video. Great job, well executed, and chucked full of knowledge. Keep up the great work homie!

[@jacobgriffin2500]

Cant wait for my strip stak pak to show up that i ordered for my seneca aspen, loving your work

[@craigburkey6260]

I sure appreciate your detailed vids on the origin! My first pcp....love it! Looking forward to more tuning vids. By the way, where can I get the ssp? Gun is already pretty quiet, but a little more can't hurt...😁 Thanks again for your efforts sir!

[@frankmertz8366]

Out of the box question, but do you think you will do a full review on the Gauntlet 2 .30cal Excellent video

[@damiangonzalez615]

Hey Hajimoto, great video. I recently purchased a umarex origin from my local air gun shop. It had a leak when they filled it. They replaced a o ring . That fixed the leak . But my question is does the barrel band fit snug on the barrel or is the barrel free floating? Mine is only snug on the air cylinder.

[@HajimotoProductions]

Typically a barrel band is not supposed to be a 100% rigid mechanical connection between to points. It purpose is to eliminate large distance movement which can end up relocating a barrels resting position. As long as the barrel band is securely held in place at one of the two points, it will perform its function well.

[@josephsaucedo8691]

Hay hajimoto great job I have to say. This is some of the stuff I was talking about none of this is new and wouldn't coast the factory hardly any thing to do. the advenger is the closest to being the most complete pcp gun for the price. Wich Is by Tyler and is a crosman design for the most part. crosman is also close and also already make the parts but still haven't made the ultimate budget gun in the next couple of years I hope there will be some nice budget gun to hit the market. Real game changers . I can build a custom one from all custom/ crosman parts at the price point with all the goods people want so why can't a factory do it. It would be impossible for me to build as much as they can and they aren't spending as much as me because I pay for mark up and shipping for all parts and have to wait for some parts to go on sale. Just to build one But still can get all the designer parts and put it around 350$ range. That's the only reason I think there slacking off on factory guns🤬. But then again it would leave us with nothing to do but tune and shoot. Keep up the hajimoto mad mods great stuff 👍😉💯🔥✌️

[@squiretomasie7003]

You are very good at explaining this process! Thank you!

[@HajimotoProductions]

Glad it was helpful! Thanks for the kind words.

[@danielharris3827]

Got the pack installed. It makes a difference, but it is still not as quiet as I would like. Yes I also run a moderator. Can I modify the TP on this gun?

[@sirkorbendallas]

What up Mr Hoagie posting another video early in the AM.. nice work brother love to see this.

[@HajimotoProductions]

😁 Thanks for the support bud!.

[@jhonnylacksville6765]

lawl at mr hoagie hehehehe heh gg rippirino

[@johncarini4206]

Just ordered!

[@HajimotoProductions]

thanks for the support.

[@donaldlundy345]

Strip stack pack on order I can't wait for it to get and get it installed thank you Haji

[@airgunsarehoneypot3555]

Truly innovative 💡

[@HajimotoProductions]

Thank you!

[@63kaycee]

Why the placement and exact size of hole to drill? why not more small holes or larger holes? why the foam ? to slow air ,or to keep dirt from entering the new holes drilled ? thanks.

[@HajimotoProductions]

Holes on the bottom mean exhaust is not in the face of the shooter. multiple small holes means diffuser material is less likely to be forced through. diffuser material is both a filter as well as a back pressure or controlled venting source.

[@alfaromeo6985]

Hi, I am new to PCP and just discovered your video. It is very helpful and interesting to see the internal of the sleeve tubing. I have some questions out of curiosity, I hope you don't mind my asking. 1) The name Hajimoto sounds Japanese and am wondering if your design/business has connection with a company in Japan? come to think of it I have seen air rifles made in China, Korea, Turkey, Germany, England, Spain and Russia but none in Japan. China seems to dominate the PCP market. 2) If the length of the diffuser material is longer, would that increase the efficiency of the diffuser? 3) If the diffuser is moved further forward to the muzzle end and leave an air gap between the diffuser and the front end of the receiver where several (more than three) small holes are drilled into the sleeve tube....would that increase the efficiency of air expansion and escape therefore further suppressing the sound? Thanks

[@curtmccauley898]

Perfect timing for this video just got my Origin yesterday. I love it but it is too loud for the back yard. Before and after sound test? Will this make the Origin backyard friendly?

[@HajimotoProductions]

I am not sure if you watched my review on the Origin. I consider the PCP pretty back yard friendly right out the gate but once the air stripper and baffles are installed it certainly helps reduce as bark.

[@robertturner2601]

Do you plan on doing a comparison video with specs like you did on the original Origin review? Stock/180°/360° vs modified/180°/360°? Love your videos btw!

[@everardobarragan33]

There,s any barrel band for the origin to make the barrel more tight?

[@joshuagibson2520]

Agreed. I'm not a fan of how loose the barrel, shroud, and reservoir are and seem to move.

[@Tofazfou]

Strip Pak, Melamine foam, diffusers, detents, ventilation, baffles, OH MY!!! Man, i'm calling you the "professor" from here on out cause you be teachin' my brotha......lol. Seriously, good stuff and I enjoyed it!

[@ChristianGuynn]

Great video, thank you. So I just got a new Origin a couple weeks ago, and I'm not seeing that set screw for the barrel shroud. Unless it's on the bottom of the shroud where I can't see it because of the gas tube. Is it worth removing the stock assembly to see if it's down there. If there is no set screw, I'm not sure how the heck the shroud would come off. Thank you.

[@HajimotoProductions]

You have the new version which eliminated the screw. You simply unscrew the barrel shroud like most PCP's.

[@ChristianGuynn]

@@HajimotoProductions You're the man. Thank you. Just got the Strip Pak from your shop and can't wait to get it in there. I have an external suppressor on it already and it's way quieter than stock.

[@adamreisman9187]

Hi Haji great video! My barrel shroud has separated from the breech block on my Origin .25 about 2.25 mm in the first two weeks? Should I be concerned? Any advice is much appreciated 👍

[@matthewpenn407]

Any way we could 3d print this for those of us who don't live within the USA or Canada and can't order this?

[@HajimotoProductions]

I never share models of currently offered products.

[@matthewpenn407]

@@HajimotoProductions Appreciate it, was able to make the baffles from the K cad suppressor pack. They look exactly the same as what you are selling.

[@carlosbettencourt7477]

What a Champ. Thanks.

[@rickoshea8138]

7:28 How does air flow through closed cell foam? Either it is open cell foam, or the shroud vent holes work by placebo effect.

[@HajimotoProductions]

Correct, it is open cell foam. It is actually a CLOSE as in micro pore foam which acts as a diffuser and filter. Thank you

[@joenolen9421]

My origin is due today,the stripper pack wensday caint wait to see the difference it makes

[@wvairgunssportsman8886]

Haji. I want you to make me a gaunlet how much u charge buddy.

[@firemanst13]

OK, I am sorry, I have the origin and it is not loud at all, so what purpose does this Stak Pak for? Does it make shots more accurate or just there to make it quiter?, Not trying to be a Smart a$$ I just never seen anything like this before

[@joshuagibson2520]

Yes, it quiets it down.

[@geojohnson5613]

Excellent tutorial and very easy to follow. I am curious, seeing all those guns on the back wall. Do you own, or work, in a gun store? I am a long time subscriber and never miss one of your videos. I like that gun vise you are using too. Nice job all around. 👍🤛 Geo in MI

[@barbsfpv3066]

It took me a couple of videos to realize that back wall is a really good green screen. His lighting is top notch.

[@edwardralphsmithbezuidenho492]

Good day were can i get a parts diagram for the umarex origin please?.

[@HajimotoProductions]

The only place you may be able to secure one is by contacting Umarex USA www.umarexusa.com/contact-customer-service

[@MudAndHonor]

Have a sound test with this?

[@WilliamR-nt5ek]

Hajimoto... Do you think this rifle with no regulator... would be better than the ATI Nova-Liberty?

[@HajimotoProductions]

Yes I do, being able to adjust the hammer preload is a HUGE plus. I prove in my review you can still have over 30 consistent almost regulated shots.

[@robertrmckerrow1111]

I’ll ask again... I live in the unfortunate state of Illinois. We cannot have moderators/silencers, even for air rifles. Something about asking the ATF...🤷🏻‍♂️ Will there be kits for the Benjamin Marauder? Benjamin Cayden? JSAR Hawk, this loud report is what’s keeping me from purchasing the JSAR Hawk? Nice fix for the Umarex! Just shy of brilliance! 👍🏼🇺🇸

[@diantrecreagh3269]

Now what would I do if my barrel near the back of the gun doesnt have that second screw?? Mine does not and I just received my donny fl suppressor assuming my gun would be like yours

[@HajimotoProductions]

Simply unscrew the entire shroud. The revised version does not have a retaining screw for the shroud.

[@WallT6969]

Haji, my gun is like his, so just unscrew the barrel band screw, however, I can’t seem to unscrew the barrel end cap! I am afraid to use too much force to try and unscrew it, Is it possible that the new guns have an end cap that does not unscrew.

[@WallT6969]

I finally got the end cap off and low and behold, the new Origins have an air stripper built into the end cap!

[@randolphso3747]

I have no more ground squirrels because of your mods. All quiet

[@webreakforsquirrel4201]

Damnit! What do you do for fun?

[@Sertao2013]

Really forever you can't solder the hole back up ?

[@heithwatkins]

Great job. 👍

[@HajimotoProductions]

Thank you! Cheers!

[@bobbyhelmers8697]

I purchased a .25/.30 cal Sumo Mod from Donnyfl for my Origin .22 and I'm getting pellet clipping, any solutions? Thank you and I LOVE your videos!

[@HajimotoProductions]

Yes use the A70 adapter and all your clipping worries will go away. Here is a link hajimotoproductions.com/index.php/product/umarex-origin-1-2-x-20-adapter-a70/

[@paulgreen2416]

Great product👍 would this item fit the shroud on an Umarex Reign?

[@HajimotoProductions]

No sir it will not :(

[@juancarlosmorfinesalvarez7559]

Y cómo quito el enchaquetado para el origin que no trae el tornillo

[@webreakforsquirrel4201]

Do you know if this will work for the avenger? Thanks.

[@HajimotoProductions]

My SSP for the Origin, also fits the Avenger yes.

[@AustonAngler]

Haji! I own a gauntlet with your baffles and barrel band kit! I really need help making a decision whether I should sell my gauntlet and replace with an origin. Could you give me your input? I’ve been having trouble making a decision. Unfortunately I don’t have the funds to own both currently. Thanks for all you do!

[@shawnweaver8025]

Is the shroud and barrel the same size as a Gauntlet of the same caliber?

[@opmandan9376]

I second this

[@HajimotoProductions]

No they are not

[@jimr7154]

Can, or have you mounted a Bi-pod to this like with a picatinny rail under the forearm like I’ve seen on the Gauntlet

[@joshuagibson2520]

I'm going to drill for a bipod as well as sling mounts. Just don't pop a hole in your reservoir and you'll be fine.

[@Britspence381]

Good review, thanks. In which country is the Origin manufactured?

[@HajimotoProductions]

The Origin is made in China

[@beccacciahunter238]

Will this gun will sell in Europe? I want to buy it.

[@HajimotoProductions]

I'm certain it is but just with a different name.

[@rafaelobo1]

I will get one, my question is with the new model the cap has baffels attached to it. Should I put less baffles from the pack?

[@HajimotoProductions]

While the new style end cap does have baffles they are not cone shaped so the stripping effect is much more effective with our design. As I have said in previous videos and articles, air stream conditioning is what we are after more than sound mitigation alone.

[@rafaelobo1]

@@HajimotoProductions I am sure about that you are right, I am getting the pack, sory let me reface my question. Does the air striper pack baffles fit with the new cap design?

[@HajimotoProductions]

@@rafaelobo1 Yes because the ne cap design is a two piece. Simply un screw the baffle extension and it is the same cap as the previous version.

[@johnnoack7775]

so, curious. the screws for the barrel band and shroud are semi covered by the stock. Do I need to loosen the two screws on the bottom so it can come up?

[@henrygarcia6078]

I hope you can make upgrades to the air venturi avenger

[@sonofthesheriff]

Do you see them making this in .177cal?

[@HajimotoProductions]

No I do not see it happening, at least for the States anyway.

[@cameronbonifant9138]

Is there a sound comparison review?

[@HajimotoProductions]

Not that I have conducted but I think if you go to Air Velocity Sport's channel he may have offered a live feedback assessment.

[@cameronbonifant9138]

@@HajimotoProductions is there a way to run your air stripper kit in combination with a DonnyFL Tanto and A70 adapter on the Umarex Origin?

[@garyhill9516]

That shroud venting may be what I need to stop my Airmaks katran from pushing lead dust all the way into my receiver. Which I believe is what caused my firing valve to stick open and cause it to be sent to the techs at Utah airguns. I was thinking about getting a oring that I can slide over my barrel and push up against the shroud threads. To keep that dust out. Maybe venting it would help as well?

[@HajimotoProductions]

Its always worth a try. Be sure to add a diffuser material like Melamine Foam or green scrunge to capture particulate and offer some level of control release of air pressure.

[@garyhill9516]

@@HajimotoProductions yes sir. First I want to be sure it won't void my warranty.... though I don't see why it would.

[@HajimotoProductions]

@@garyhill9516 I would always assume that any modification made to the PCP will void your warranty. If you are not certain a quick call into the manufacturer or vendor would be the thing to do.

[@johnhawk9321]

Always like to learn thanks

[@HajimotoProductions]

My pleasure

[@jumpkickman1993]

Just bought an umarex origin out of curiosity into PCPs. They are so addictive that I ordered an umarex gauntlet .25 caliber in order to do some Turkey hunting. Now that my umarex origin is my back up Rifle would you suggest I attempt these modifications? Also the screw on the barrel band is far too close to the stock making it impossible to fit an allen wrench and unscrew. Any advice?

[@chriswelljack4910]

Just twist the shroud in place then after you get it set it where it will be reachable or just take the stock off and adjust it

[@henrygarcia6078]

will this fit the avenger?

[@HajimotoProductions]

Yes

[@calvinlangner3996]

Can you do a video of your extended 17 rd origin .22 mags?? I'd like to see how it sits inside the mag slot and under an optic, I'd prefer to keep my vector everest 3-18x50 with med mounts ya knw but I would Chandge mounts if needed

[@HajimotoProductions]

Calvin typically you need 20-21mm of clearance. if you have that your good if not you will need some high rings.

[@rick31869]

as always , awesome video brother !

[@kurtfirestone2761]

I'm guessing this is too quiet it down is that correct

[@smackdn775]

I agree, I'm new to this PCP world and he didn't explain why this mod was done for. What's the purpose and does it improve performance?

[@opmandan9376]

On the gauntlet video he shows it helps quiet it down a few db and give more consistent air flow

[@smackdn775]

@@opmandan9376 thanks for the reply,I'll have to check out that video

[@manuelsilva5967]

I enjoyed the video very easy to do. Do you have one for the Avenger 25

[@HajimotoProductions]

Thank you, the Avenger is the EXACT same procedure.

[@manuelsilva5967]

@@HajimotoProductions with the same parts and can I get them from you thank you for your time and information

[@alfredosaenz3328]

Where can I buy this kit and will fix my point oh impact?

[@HajimotoProductions]

You can purchase our Strip Stak Pak from our website. A link will be provided below. I want to respond to your statement of "will fix my point oh impact", there are a lot of things that can affect point of impact results and it is not a fair statement for me or anyone else to say that any single product, mine included, will correct your impact point issues. Be sure to check the ammo, the barrel, the shroud, the operating pressure and so forth as they all can affect the POI. hajimotoproductions.com/index.php/product/hp-strip-stak-pak-for-origin/

[@alfredosaenz3328]

@@HajimotoProductions thanks

[@stevevw34]

Hi from Ireland🇮🇪 , good job 👍, would have liked to hear it before and after though ,,

[@HajimotoProductions]

Thanks for the comment! If you want to hear the before, watch my complete review of the Origin here and sometime in the future I will do a follow up of the after-effects. kzbin.info/www/bejne/anKco6ivi7WVpcU

[@G_GOutdoors]

How does this compare to say a donnyfl tatsu?

[@HajimotoProductions]

Comparing the physical dimensions, the HP SSP does not add any measurable weight or length to the Origin and does a fair job conditioning the air stream as well as reducing muzzle report. The DonnyFL Tatsu will add 4.25" to the length and will require an adapter. The adapter comes in two forms and will add about 2oz more for a total weight add of 6.25 OZ. The suppression comparison is night and day, the dedicated Tatsu will out perform the SSP all day long.

[@DanielGarcia-zw8nx]

If I don't drill the holes will it not suppress properly or will it work fine?

[@HajimotoProductions]

It will work fine. Drilling holes and adding a diffuser material allow you to use the shroud chamber as a controlled release chamber rather than a dead headed pressure vessel.

[@lambrokedrc5998]

Nice!

[@markK1PU]

Should use cold blue on the holes

[@HajimotoProductions]

You do realize the shroud is aluminum, right?

[@WilliamR-nt5ek]

excellent

[@dmsentra]

Would you explain what this is all about, why to do it?

[@HajimotoProductions]

Watch the video again and listen as I explain why someone would want to tune the PCP for their use.

[@straightshooterz]

This does not work for the newer avenger with the threaded shroud The newer avenger has a tube tip that slides over the barrel

[@HajimotoProductions]

I think that tube type alignment fixture you are describing is not stock, that is a DonnyFL product known as the A70 Adapter. The stock end cap is a multi piece unscrewable cap with baffles that unscrew.

[@HungNguyen-my6bx]

👍👍👍

[@fishing4happiness610]

Thanks for this... subbed and liked to support a fellow KZbinr!

[@jumpkickman1993]

You should probably tell people to put the foam like on a table or in a vise instead of in your hand because some idiot is going to screw a hole through their hand just saying

[@raymondabrego5621]

What is this for ?

[@fjqtaxch9]

Don't void the warranty because you'll need it when it breaks. It's dangerous to try to fix it yourself because of its complex new tech.

[@bonacci01]

That green screen you always use is super distracting and not needed !!! Great info otherwise !

[@richardthompson1239]

Come on all this and no db results ? Boooo !

[@HajimotoProductions]

Believe it or not but air strippers and baffles condition the air stream as well 😉