Fixing the slide drag on your Polymer 80 build 

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I did this to my P80 like you said and it worked great on one, another one i got so so.. Ended up measuring where that fin sits side to side and found it off just a couple thousands, tweaked it and worked like a charm.. I guess depending on where you get the trigger bar they all might not be as precise as they should be. Black magic marker also helps find where and if its rubbing where it shouldnt.. Great video thank you.

Thanks for this video! I’ve owned 5 glocks and built three 80%s and every single one of them have had this issue. Giving it a try now 🤘

Thanks dude, needed this. U and marinegunbuilder have been massively valuable to my build.

Thanks man! 2 years later and still helping people out! Fixed my issue 🤙

I am so glad to see someone addressing this issue! I spent all day yesterday looking for a solution to this problem, but didn't even know what to call it. I pop onto youtube again today and this is the second video in my feed! My build will thank you forever! :)

You are a life saver . I was going to quit building until I came across this video and was able to fix the same problem you had.

Just getting into P80 building and your knowledge is a big help,good stuff,keep it up and will definitely lean on your know how

My Brother doing his thing and putting in the work !! #gunsmithswinning

This is the problem I'm having and have found only your video that addresses this issue. Thanks a bunch. I was ready to call the gunsmith cause I have literally changed every part in this thing to oem to fix this to no avail. Awesome video!

Great video bro. Just did my first build and had the same issue. I knew what was causing the drag and was about to buy a new plunger when your video popped up on my stream. Thanks for the tip

I’ve been looking for this solution for months now !! THANK YOU !!!!

Very helpful, I couldn't figure out what was causing it to stick. Once you pointed out the problem area I put a bit of lube on a qtip and rubbed it on the safety plunger and trigger fin. That fixed the problem for now, in the past with another polymer80 build the problem went away after putting about 100 rounds through it. Thanks for taking the time to post this video.

Thank you thank you thank you thank you. I couldnt figure out for the life of me, why i kept having this drag. Ur trick worked. Im definitely going to be a new follower

I think what you’re doing with these videos and interacting with your community is absolutely amazing. You’re gonna grow quickly doing this and I for one am very appreciative of all of it. I’ve done a few builds now and I got the hang of it pretty well but in the beginning I wouldn’t have done it properly if it weren’t for you and MGB. Thank you both and keep up the great work!!

Just wanted to say thank you for this video. This was a very frustrating part of my build. It's much better now.

I know this is an older video. But you gave me some info I needed. Thank you and you have a new subscriber.

That frame and handle look great man. Love the black and white/silver look it has going on with it.

I have this exact issue. I used sandpaper to polish the fin. It does feel a little better, but I still need to polish that safety plunger a little bit. Thanks for the advice!

This was a great video it helped me out a lot, I’ve been trying to fix this issue for a while now. Thank you!

Gr8 insight bro, just getting all my materials ready for my 1st p80 g26 build

I had the problem with it get stuck and not going into battery. I was worried it might mess up my 80 but at this point it wasn’t working anyways. I did exactly what you said and now my build is smooth as butter. No more issues at all and haven’t had a malfunction since. Thanks for the information

I subbed and liked, this video helped me fix my slide drag. Thanks for all the great info!

I've been deburring/polishing the plungers on my Glocks since I got my first one 20 years ago. I bought it used and it had that exact problem (which is why the other guy sold it). Figured I would just start with a basic disassembly and cleaning and I had to fight the plunger to remove it. That one just got the 600 grit treatment but it worked fine.

Went from complete jam up to a near perfect run (last shot didn't lock slide back) by following your suggestions...thank you!

I can't wait to try this. Sand and polish that trigger lip. I built a PSA dagger .40 and I was getting several failures to feed and weak strikes that didn't fire the round. Thanks for this!

Thank you for this video sir. I'm off to fix this slide drag problem of mine. I appreciate you!!

Thanks man, fired my ss build for the first time last night and had this problem.

Thanks Brad, you are a boss. 💪. Worked sooo good.

This is one thing they changed on the gen4 Glocks, Can also use a couple different grits of sandpapers then put a polish on it with the Flitz, then should be good to go. We all should share the know, like the ARMY says, adapt, innovate, overcome.

Having this exact problem with 2 serialized p80 builds! Thank you for the information

This was incredibly helpful...thank you!!

One of the few legends in the Glock/80 group you definitely aren't one to not help out. Just preparing myself for another build

I’ve only had this issue on a few cerakoted slides. I ended up polishing the hell out of all the metal in the upper and lower parts kits and racking the slide about 1000 times. If that doesn’t work on my pf8ss then I will give this approach a try. Thanks for sharing man.

Dude! Your garage is on fire!

Great video brother & a beautiful build👍 Thnx.

Great video, glad to see it young brother, I know it's a old video, but great job.

I ran across two other issues with my build. They caused similar but different problems. First the recoil spring was rubbing on the u channel. Just running the spring in the channel it would catch one of the coils every so often. Further filing and polishing fixed that. The fix was very subtle. The second issue was the spring for the slide release. The spring didn't seem to seat as low as I expected. The part going in to thre

Great Guy real American here watching out for us .Stay safe Thanks very much.

Thanks bro ... just what I needed

Thanks brother, thT helped me out on my 43.

Excellent video. Helped a bunch

thank you sir. 6:25 for the dad "GTFOH" move. lol

This solved exactly one of the issues I’ve been having! Thank you! Another question! The rear trigger assembly housing doesn’t want to lay flush to the rails; it wants to be half a mil higher to get the pin thru, and as a result has a bit of wobble, as well as making the extractor run slightly on the slide. Should I drill the rear assembly housing so it sits all the way flush with pin installed and jb weld it into the chassis? Will jb work? Any other fix?

Thank you. Been trying to trouble shoot this issue for some time now.

Very well explained!

Tks , your plunger tip helps a lot

IMPORTANT INFO: BEFORE REMOVING MATERIAL!!!! Ensure your firing pin safety spring is properly aligned when installed. When the spring is slightly off and doesn’t go into the hole in the center it will cause slide drag. Once you remove material it could cause problems when the safety is reinstalled properly.

Great video! Thanks for the help.

@Gledhill Customs I'm having this issue I've tried two different safety plungers. I'm going to see if this will help out. If this doesn't fix this issue would you have any other recommendations for me to look at that could be causing "slide drag"?

I use Flitz Polish on a old sock with a drill on my safety plunger. I would not grind on it. The hardening on glock parts is very thin. I have had the same problem a few times and l think the best fix is to remove the rear rail and the point where the trigger bar and the rail touch take a diamond file to that point and remove a VERY SMALL AMOUNT OF MATERIAL!!! It might take a few times of reinstall and test but you can't add material back.

Thanks. Makes sense. Will do it tomorrow. I owe you a beer.

So I’ve got a question for you not sure if you can help me .. when I dry fire my battery goes back smoothly but when i put bullets in magazine sometimes it goes back into battery and sometimes it doesn’t why is that ? I’ve never fired it at all .. do I need to keep smoothing my rails out plus my plunger as well ? I’ve already have smooth it out but maybe I need to do it more ..thanks so much in advance

Hi im looking to buy a oem Glock Extractor Depressor Plunger+Spring+loaded Bearing for my p80 build but I cant seem to find what the difference is between LCI & Non-LCI

I have a question about having a gap in the front end between the slide and frame and being able to see the guide rod pretty well. Is it the parts I’m using or did I just put it together wrong? Thank you

What about the connector (I believe) scraping the slide leaving wear marks on the hump on the right side of the slide

G23 .40s&w completed stainless ported rock slide w/ a silencer co threaded barrel on a polymer 80 lower w/ (what I hope) are OEM parts having failure to feed; you think it’s the trigger connector? Trigger housing? Or the safety plunger like in your video?

what if the slide sticks when recoiling one a round has been chambered and the firing pin releases? It sticks when initially recoiling after a round has been spent.

Omg. I was about to give up on my build. I think this did the trick. After doing it it goes into battery every time I have the trigger pulled!!! Next, testing on the range.

so i have a question, i was shooting my p80 g17 build and after i would shoot a shot the slide wouldn’t fully go into battery BUT it was picking up rounds, i think i was encountering this so im going to do this to my safety plunger, but are there any suggestions on what else it could be if it doesnt work right still?

@Gledhillcustoms thanks for the video, can you point me in the right direction to stop my nosediving and slide lockup problem when I run hp

Omg life saver thank you for this video

Good morning Sir I have a problem with my slide stopping when I rack it back it works fine without the trigger and housing but when I put the trigger and housing in and the slide gets stuck.. It goes all the way back but stops about when returning forward..again it racks fine with no trigger and housing..

What if you magazine falls out while shooting? Using glock mags and pmags. Swapped out spring and button, changed grip(one handed). I even let someone else shoot

I'm having this issue with psa dagger frame (glock gen 3 clone) and an alpha shooting sports complete slide. Do you think it's being caused by same issue? Haven't shot it yet at all just want to get it right before I even attempt.

Hey dude, this is Jake from Tacticool! My pal is using your videos to fix his P80 and he sent me a link to your video! I was like "bro! I know that dude!"

On my p80 i need to use force to remove the slide , it doesn’t come out smooth any help ? Should I get oem parts ?

Awesome video. Thanks

Built my p80 almost perfect parts came lubed shot it n it jammed trying to load the next round I took it apart n used mink oil for my boots on it with a q tip and melted it into the recoil spring lubed the rails and it slides like butter now no scraping noises just smooth sliding

Hey I'm having the drag issue on my g48 build any suggestions

Another reason to slide binds is the slide takedown leaf spring. I've been trying to figure out why mind is binding for a few days, tried everything in these videos and nothing worked the stupid leaf springs sticking up just a little tiny bit, removed it filed it down and put it back in now it sits flush and it runs smooth.

Out of curiosity, how did you get your FFL? Thinking of getting one myself but wary of the process.

Dude you saved mt ass I been chasing this problem

Thanks man, this is exactly my problem and I would've never guessed the cause of it without this video. The first part you mention grinding down, mine doesn't really have any lips and it appears to be machined in a very particular way. Do you still recommend grinding it down or should I just try to polish the plunger first and see if that fixes it? If you do recommended grinding it still which surfaces do I go after? All of them? The front? The back? Appreciate the help

Good job bruh appreciate it info.. I actually had that problem on my p80.. builds usually disappoint people after the first built with hella issues.. but everything jus needs a bit of tweaking not tweakes lol.

Hey the plunger may be getting stuck because the OD (outside diameter) my be oversize or rough. Also the slide may have cerakote buildup or just need filing and polishing so the plunger will go smoothly up and down in its hole. File and polish the plunger hole.

I am doing my first build and I can get it to rack what did I do wrong or what did I miss ??

very nice. sweet pistol. you may need a sign for your door that says recording do not disturb.

I’m having the same issue with a P80 build but, I’m getting a dead trigger (sometimes). I depress the trigger, hold it, rack the slide and sometimes it goes into battery, sometimes the trigger won’t reset. It’s just dead, stuck to the rear. I’ve put the slide on a Glock 17, it functions fine, put a Glock 17 slide on the P80 frame, it functions fine. Only having issues with the P80 slide on the P80 frame.

The only slide drag I have is when I am clambering a new round and dont pull the slide back far enough could this be cause by the same thing? I have no drag with an empty gun...

I like that frame man

Will this problem also cause a off center light primer strike as well ????? I’m having this problem as well as off center light primer strikes. I honestly don’t think I need a stronger recoil spring assembly or and a new striker assembly.

Great video. I am having the same issue. I’m new to the the builds and kind of need a more in depth step by step process. Didn’t know if you were available to chat. Let me know. Thank you

Hey bro for some reason my spring looks different from the one on yours on your springs they look more rounded edges and mines look like sharp could I be a problem

My shark fin need to be smoothed out how you recommend to do so?

Nice work.

Having the same issue on my p80. Im going to install the apex trigger and plunger. Hope that will fix the problem.

Have you ever had the issue of when you pull the trigger and rack the slide it locks back without a mag in it? Doesnt happen every time but still.... Its not supposed to.. any info would be greatly appreciated.

Thanks you for the help! I subscribed for more.

Thanks man, bless you.

thanks for the insight i just used a file and a drill i guess i did ti this may because i have a project a work that i use a drill and file also so again thank for this helpful videp

What if you replace the plunger with a stock Glock plunger?

I have a p80 and it jam one and a while but I noticed after 4 or 5 round the slide run came off

Hey brother thank you so much for this valuable information truly appreciate you. Unfortunately I do have some separate questions I'm building my first Glock19 Gen 3 clone from a combat armory build kit . And let me tell you it's been kicking my ass . I just recently thought that I have finally gotten it to a good and safe functioning performance after tweaking all the lil issues I've ran across but when I when to cycle some ammo manually it has proven me wrong and I am back at square one scratching my brain as to what it could be that's incorrect. So it's not loading nor chambering any ammo it almost looks as if it's getting stuck on the trigger bar is that command like maybe the trigger bar isn't at the right angle and needs to be bent back idk . If you send me an email I can do a quick video and send it to you to give you more of an idea . Like I said this is my first build using build kit from combat armory gen 3 g19 complete build kit. . please if you can help me send me a response with an email to send you a video or maybe a video call if your not to busy. I'm thinking it's either going to be my trigger bar or maybe my extractor but I just don't know . Hopefully you can bless a young and enthusiastic beginner with some wisdom and knowledge . If not that's also understandable and thanks for your videos they are well received and viewed much respect and appreciation respectfully, Joe G.

Super helpful!

Thanks bro I'm going to round it out now

Well explained.

Love you content, im having a issue im hoping you can shed some light on. I have a G22 gen 3 and i just bought a replacement slide (rockslide usa) and uppers kit and tried it out on my glock lower and its not going into full battery or ejecting properly. Im still waiting for my p80 kit so i can try it out on it but im assuming it should work on my trusty glock as that gun function flawlessly. Ive noticed my glock upper is nice and smooth while my cerakoted rockslide is almost like a fine grit sandpaper in texture. Any input would be very helpful thanks again and im definitely going to subscribe to your channel.

Great video, I've got one for you! My trigger bar is dragging on the slide just in front of the safety plunger and marking the slide clearly! Fix? Suggestions? Any information would be greatly appreciated, thanks!

I have a similar problem. Mine seems to be catching on the barrel. I've located a couple of the problem spots and sanded them down lightly but it's still doing it. Barrel doesn't recess all the way into the slide unless I drop the slide hard. Slide is cerakoted so I'm trying to feel it out and see where it all touches so I can polish it up a bit. I'm aware that tolerances can be very tight when using different parts from different manufacturers so I somewhat prepared for it. Any ideas as to what else I can do to remedy the problem?