CZ Scorpion Welded Trigger Pack Removal by HBI
Vložit
- čas přidán 4. 04. 2017
- Video showing how to remove a welded (world legal) trigger pack from a CZ Scorpion using a drill from the underside of the trigger guard. hbindustries.net/store/shop/c...
- Věda a technologie
This video was excellent and helped tremendously to remove the trigger housing from the lower receiver to change out the return spring and disconnector spring. One interesting thing is that there was no collar on the end of the screw connecting the trigger housing to the lower receiver. The CZ people put a weld at the protruding end of the screw on the inside of the trigger housing welding it right to the sheet metal. After tapping through the hex screw head using the drill bit from HBI and removing it, I grasped the weld using a needle nose vice grip and broke the weld which enabled me to back out the screw preserving the threads in the sheet metal housing. After replacing the springs and the trigger the trigger housing was replaced easily into the lower receiver without difficulty. Just to let you know that there might not be a collar on the end of the screw but grabbing the weld and twisting it will separate the weld from the trigger housing and allow the headless screw to be removed safely.
Bro. This welded bolt is the bane of my existence. I had a drill bit heat up and literally WELD a bead inside the drill hole. I live this gun. This part is ridiculous
Fyi.
Get the screw at lowes
Hillman 4mm to 0.7 x 10mm allen drive black Phosphate cap screw.
Part # 138629 Model#880821
90 cent for 2.
True this ^ the trigger housing screw is M4x0.7 -10mm long. An 8mm long will work, 12mm usually works too but is VERY close to the front edge of the hammer. If your local hardware store(s) do not have 8mm/10mm/12mm you can obviously cut down longer screws to work as well. We think our screws are super awesome and just the best ever (kidding). If you already have good 1/8" drill bits it could be a lot quicker and easier to just check local hardware stores for the replacement screws as mentioned above. Thumbs up!
DudE thank you SOOOOO much for this tip. I went straight to Lowe's and got it right off the shelf. It was my first attempt at a trigger job and it was a success!
Finally got around to replacing the trigger springs in my Scorp carbine, which was welded. This kit is the bomb, the collar and remains of the screw even backed out while being drilled, so I didn't need to use pliers for removal.
Thanks, really helpful. I ordered the bit, screw and spring from HBI after watching.
I really enjoyed watching your video. Everything about the video put a smile on my face, and it makes me want to buy your drill bit/screw set even if I don't have the welded screw! Thanks for posting such a great tutorial!
Thanks for the vid. I got a welded screw on mine. Its much easier to remove then I tought. Now need to get the drill bit and the screw
My 2022 CZ Scorpion has an epoxied trigger guard screw. They put a very heavy coat of epoxy on it. It drilled out OK.
Thx, didn't know about the weld, need to do a trigger job. Don't forget about loctite on reassembly.
I've tried 3 different drills and the drill bit just keeps spinning in the chuck
Why the hell did cz start welding this in to begin with. If they dont want us to change out the triggers they should make one that isnt a piece of garbage with 46lbs of pull.
Just picked one up last month. No weld, just loctite.
Great vid. It would have been easier to see if the guy wasn't wearing a dark shirt. The trigger pack was hard to see on most shots, except extreme close ups.
Great idea! We all wear the black shirts because they stay clean looking longer :-) Never thought about how they would effect these videos though. Will see about getting other colors for future videos! Thank you!
Will this work for a buggered hex head that initially started to turn but then the top of the hex stripped. I was using a 3mm hex key.
Yes, the factory hardware is notoriously soft and the heads commonly strip. You can try forcing in a T15 torx or 1/8" SAE hex tool into the head of the stripped 3mm screw (read "hammer"). The surefire fix is to just drill it through. We sell a "kit"... it is nothing special, but for $6 you get an application specific drill bit and a higher quality replacement screw. Kind of a set it and forget it type of solution.
Got the kit and did as the video instructed. No luck. Drillled off the entire soft screw head that sits outside and thru the hole in the trigger guard, but it looks like it was housed inside some kind of collar that is now hollowed out but I can not drill down any further to break the screw. The hollowed out collar is hard welded and now the hb ind drill bit just spins uselessly inside this hollowed out collar. Not sure what to do. This is on a new scorpion micro. Have they placed the screw head inside a welded collar now? The other part of the screw inside looks like it has a blob of something (like wax but it's probably not) covering the pointy end of the screw. Any ideas?? Thanks.
got it off; had to use a pair of small lock pliers to grasp the screw cup and slowly twist it off. The HB ind drill bit did its job but CZ has apparently switched to a new screw that has a collar between the head of the screw and the screw itself. Not sure it would have ever broken off as I had drilled it down to the screw and it wouldn't break. Thanks to Phil of HB Ind for taking time on the weekend to respond to my email.
@@johnski4709 LOL. You didn't watch ANY of the video, huh? The entire video is about the welded collar, and how you still it from the TOP down, not from the head of the screw. Derrrrrp.
@@littlejackalo5326 not sure what video you watched but I followed this video exactly. Moron.
Just got a new Scorpion EVO S1 pistol and I can't get the trigger housing screw to move at all. Is it possible they are still sending out 'welded' versions?
Update - couldn't get the thing to budge, and finally decided to drill it out. Drilled all the way through it, and it STILL won't budge. This is nuts..
At the time of this post, anything with a mfg date of 2018 or newer *should* NOT be welded. The factory does use thread locking compound on that screw, but again there is no collar welded on it. You can certainly drill the head and remove the screw as you would if it was welded. This is actually very common, the factory screws are notoriously soft and many of our customers have rounded/stripped the 3mm hex just trying to get the threadlocked screw removed from the housing.
@@hb_industries Thanks for the response. Finally got the bolt fully drilled out and was able to work the head off. With that out of the way, I got the Theta trigger and spring pack installed, no prob. Big improvement!
@@hb_industries I believe this is what happened to me. I have destroyed the lower in an effort to remove the trigger pack. I have ordered a new one.
I have a newer version so no welded bolt but they put so much thread lock, the head stripped immediately and it won’t budge... I have a 1/8 drill bit to try to go in through the head but it literally won’t go into the head no matter how much I push in with the drill. Is the drill just not strong enough?
Also, does anyone know if I can get an empty lower so I can just forget about the current one lol
The drill bit that you are using might be "dull" or the cutting edges broken. Recommend purchasing a new drill bit specifically for metal (118-135 degree split point)
@@hb_industries thanks! I just bought your drill bit pack. I am going to need a new screw anyways, and I would rather do it myself then pay for labor fees at my gunsmith. Will this still work on the glued screw (not welded)?
@@nazombie051 We are 2 weeks late to this party, but yes, you can follow the exact same procedure to remove the thread lock/bonded screws as well :-)
Hi, im new to guns and CZ in general and i have a couple of maybe a dumb questions, but do you need to do this to all CZ Scorpions even in 2021? And can you tell me why do they do dis? And can i replace trigger springs with out drilling the screw?
The factory trigger housing screw uses a 3mm hex tool/driver to remove it. Best thing to do would be to attempt removing that screw, and it if comes out great no need to drill. But if the screw strips you can always drill it out as shown in this video. CZ has been known to make changes over the years, and currently, in 2021, the screws are not welded into the trigger housing. But they are still soft and do have thread locker on them. On the installs that we do here (at HBI) some of the screws come out with a tool and some need to be drilled. Only one way to find out :-)
@@hb_industries Thank you so much for answering. Can i ask do you ship to EU or to Serbia? And if you don’t can you tell me where can i find your products in EU?
Working on my current production carbine now and there's no weld. I ordered the bit kit before the rifle arrived, assuming I'd be drilling the weld. Thinking I was lucky, I was just gonna unscrew the trigger group and do my upgrades...nope! Damn factory screw head stripped out immediately. It felt about as rigid as soft aluminum. Thankfully, I'd ordered the bit kit and am installing my springs now!
@@PNW_Cole for anyone reading after his response, do not use a ball end hex/Allen key. Also, use a soldering iron placed on the screw to break the thread locker. And use a quality hex key. If you have several 3mm keys, use a micrometer to get the one you have that is closest to 3mm or even 50 microns over. A lot of Allen keys, like from harbor freight, are 50-60 microns undersized (2.94-2.95 mm).
I did.
Mine must be hardened steel or stainless because your cheap bit wore out just after rounding out hex head of screw I tried several 1/8 bits none will drill through head I think I need a carbide bit.
You were drilling way too fast. It's a common mistake that happens to people, without metalworking experience, all the time. You don't need carbide for it though. You'll just chip a carbide drill bit or break it altogether. Unless you can mount it in a vise and drill it in a mill. I wouldn't even try using a carbide drill bit on a drill press.) Alternatively, you can use the Bosch Daredevil multi purpose. They look like masonry bits, with carbide brazed on the tip, but are for drilling steel. They're the best bits if you don't need more precise holes that twist drills provide.
I received the drill bit and screw. I followed your directions.. I succesfully removed the head of the screw but the trigger pack still wouldn't release. More work and fiddling and the trigger guard is destroyed and a part not shown in your video has been broken.. I've ordered a new lower for my Scorpion and I will be taking it to a gunsmith to have this done.
Any idea if they're still being made with the "World Legal" trigger pack, or if we've gone back to the not-a-pain-in-the-ass-one?
I don't know. It seems spotty. We have 2 evo 3 pistols (one bought 3 months ago and one bought 1 year+ago) and a 3+ pistol bought last week. None of them had any of this going on. I had never heard of it, and that's why I watched the video. Maybe it's only on the rifles sand not the pistols?
I purchased this and i cant drill through the screw head. Just keeps spinning in place no mattet how much pressure i put on it. Please advise.
Is your drill chuck bottoming out on the lower receiver/trigger guard? You might need to "choke up" on the drill bit... meaning bring the drill bit out of the drill chuck a little, so that the bit can engage the screw without the drill chuck making contact with the trigger guard. If that makes sense?
@@hb_industries i left enough room to drill through the head for sure. I called your customer service and they're gonna take care of me.
I just tried that on mine just now. The drill bit seems to bit about a half inch too short. I have to have the bit barely in the drill clamps. I can’t drill out the last tiny bit of the screw
@@hb_industries choking up on the bit means putting it further into the chuck. Like when you choke up on a baseball bat, there is less bat sticking out.
@@littlejackalo5326 you are right; we should have worded that differently. The idea is to let more of the drill stick out of the drill chuck. Not less. Good catch.
Jesus CZ! You ever heard of locktight?!
It is a legality thing for other countries.
I have a very new one and it looks totally different.... may i send photos and seek advice?
Yes please contact us at any time: sales@hbindustries.net or 888.700.4888
@@hb_industries is there any update on the newer way the trigger packs are fixed into the lower?
@@StenKIRA no welding, just thread locker.
I just stripped mine will this still work for it? I order it anyways just need some reassurance lol
Yes, you are good to go... Just drill and remove per the video. Also... for reassurance... the factory screws are very soft and often the 3mm hex is formed off center; you are definitely not the first person to strip out a factory trigger pack screw. It's going to be fine :-)
@@hb_industries I’ve been drilling for 5 mins and it isn’t doing much😂
How does this affect warranty ?
I got this from CZ : I can also tell you that installing a binary trigger will void the warranty. If you have anymore questions feel free to ask!
Jacob Cheney
Customer Service Supervisor
913-321-1811 (ext 4701)
There is nothing that this would affect unless you botched it up.
This is the screw for trigger pack for anyone who breaks theirs because of the weld. These are at Home Depot.
HomeHardwareFastenersScrewsSocket Head Cap Screws
Everbilt
(Brand Rating: 4.4/5)
M4-.7 x 10 mm Plain Internal Hex Socket Cap Head Steel Metric Screw (2-Piece)
🍺A virtual beer to you, my good sir! Thank you
Hi, Does the micro pistol have this welded screw?
Currently, as of 04/2020, the CZ-USA S2 Micro pistol has NOT come from the factory with a welded screw.
@@hb_industriessorry for stupid question but.. how do we kno what date it was manufactured ?
@@JohnWayne-ec1gi Not a bad question at all. All Evo's have the two digit year of make on the bolt and barrel. For example, a 2018 model would have "18" on the bolt, and a 2020 model would have "20" on the bolt. For an exact month of assembly or manufacture you would want to look at the factory test target; that piece of paper is marked with the day and time of final proof/test fire.
@@hb_industries ty for your reply.. I ordered a couple things from your website as well.. I'm excited to get them installed on my cz scorpion
Where would we find all the different changes in manufacturing for the different models?
Is there possibly an online resource?
Why do they weld them?
Is mandatory for some countries, so that the trigger cannot be taken out for conversion to full auto.
@ drekovskio nailed it
Mine wasn't welded 😲
Excellent instructional video.👍 I just don't understand why the molestation of a perfectly reliable CZ Scorpion.🤔 It is a SMG design after all.
I sure hope you're wearing an eye protector, coz you blew air from your mouth which required you to come closer, thus elevating a chance of chips going to your eye. Safety first!
😺. Grow a pair. "YoU bLeW AiR fRoM yOuR mOuTh wHiCh rEqUiReD..."
you talk way too much
Lol
Cry about it.