Air Arms TX200 Trigger Question

[JAMz]

Hello Gents. I have a question for those experienced with working with the TX200. This is my first try at this so please bear with me here.

I’ve been working on my TX200 Mk II for the last several weeks. So far the job I’ve done is put in a Vortek HO PG3 kit along with a new piston seal. Also replaced the breech O rings with Maccari high heat replacements. I re-lubed the piston, the bearings, the sides of the piston seal, using the provided grease. Also cleaned and re-lubed the coking link and shoe. The gun is working nice but there is something I’m not sure if it’s normal or is a result of stripping and putting back together the gun several times.

The trigger pull feels nice and smooth with the safety on. But when the safely is disengaged the first stage feels gritty. Honestly I can’t recall if this was “normal” or it’s something due to work done recently. Maybe it needs lubrication? Or polish? All I did to the trigger block was to wipe the excess of factory oil on the outside. It was almost dripping oil.

Any advice is greatly appreciated. Thanks and stay safe. Juan.

 

[ronmcc4]

I can tell you that a gritty feeling isn’t normal at all for the TX200. What I can’t tell you is how to fix it. If it wasn’t doing it before, something may have fallen into the mechanism. Hopefully, someone with experience working on these triggers will respond with some help.

 

[gonzav71]

Juan,

You can remove the trigger blade by punching out one pin holding it in place. You might be able to clean it better and remove any debris inside the mechanism.

Leo

 

[boscoebrea]

 You may be able to clean the trigger without taking it apart,try shooting gun cleaner through it,wear eye protection.

Be careful trying to smooth trigger,clean it and use it,it should get better without any other "work".

 

[JAMz]

I’ve been thinking that maybe this is just normal and it is just the effect of the whole trigger mechanism being under the stress when ready to fire. Maybe the difference felt is that while the safety is “on” the trigger parts are “resting” against the safety therefore it feels smoother.

If someone with a TX200 here can do this test for me so that I can compare notes I’d really appreciate it.

Cock the gun, leave the safety on and feel the 1st and 2nd stages. Now disengage the safety and pay attention on how the 1st stage feels.



Thanks!

 

[Michigander]

http://www.airguns.net/general_tx200_trigger.php

Referencing the diagrams, I believe the safety does prevent part 6 from contacting part 5, thus eliminating sear drag. So it would be normal for trigger force to be lower with the safety on. That said, the trigger shouldn't feel gritty in use. Remove the trigger and lever 5, clean all parts, possibly polish lever 5 where it is contacted by adjustment screw 1, lubricate with a very light lube like Rem Oil (bottle size), and reassemble. It should feel better. If desired a small amount of light synthetic grease can be applied to the sear surfaces and where screw 1 contacts lever 5. Let is know how it turns out.

 

[gonzav71]

While the safety is on, there is no first or second stage. It seems to be disconnected from the mechanism. It is one mushy pull. When the safety is off, then you get the first and second stage. If you are getting a gritty first stage, then remove the trigger blade and polish the surfaces as directed by Michigander. It may be the first stage screw head needs polishing when it contacts part 5.

 

[JAMz]

That's precisely what puzzles me. On my gun I can clearly feel the 1st and 2nd stages even with the gun un-cocked. When cocked (safety on) its feels exactly the same. The gritty first stage is only felt when I pop in the safety. On a side note I've been studying the diagrams, simulations and YouTube videos to understand better how the trigger works. It's been a very enlightening experience to learn about this . I'm thinking about trying my hand at the polishing process. Still I need to get a good set of pin punch tools for the job.

 

[JAMz]

Thanks for lubricants recommendation. All I have at hand is Napier's Power Airgun Oil (spray) and an old oil bottle that came with my British Tomahawk.

 

[Yarddog]

There's a slight grittiness in my TX trigger but it doesn't bother me...the second stage which does the firing is spot on.

 

[JAMz]

What other lubricants are you guys using on for your gun's trigger?

 

[cmburkhalter]

Just figured I’d throw my experience in here. 


When I got my TX200, I had the same described gritty trigger feeling. Once I decided to pull the trigger group for a thorough cleaning and polish, what I found made me a bit angry since I bought a new rifle - not a refurb. I was able to polish the areas that mattered, but I can’t help but feel like I’ve lost the ability to tune the trigger as a result of some of the gouging pictures above. What does everyone else’s triggers look like? Mine was not very finely machine and looked really rough, even in the areas where it really matters (it seems). I’ve eliminated the gritty feeling, but now the first stage doesn’t appear to want to reset as cleanly as it used to. Maybe that could be resolved with a small amount of light oil?

 

[cmburkhalter]

Ok, turning up the break weight a touch got the first stage reset back, but still seems like there could be room for improvement if the parts were in better order :/. Interested in seeing what others have for hardware in their triggers.

 

[Nitrocrushr]

Most (if not all) TX sears will have marks and indents like yours. My guess is that there is some worn equipment in their sear manufacturing process as the indent locations are always in the same spots, and have gradually gotten more pronounced in recent years of manufacture. I’ve never had it cause any problems for setting them up though. Clean, light stoning and lube with Weapon Shield and I get a nice smooth operation.

What will cause problems is if you get a brittle sear due to improper heat treatment. I’ve had a couple of those and they will chip out making it impossible to get a good, crisp, clean trigger action.

Steve

 

[cmburkhalter]

Thanks Steve,

I’ve been gradually turning up the break weight and it’s getting better after the polish. Also something I need to take in to account is I have to relearn the trigger again, and what I’m finding is after roughly 100 shots with the break weight up a tad and it is indeed smooth with a very well defined second stage that breaks very cleanly. I’m definitely glad I decided to take the dive and clean it/polish it up.

I’ve noticed the safety action had some grease on it and after removing it’s a bit more difficult to go off safety. Does anyone grease the safety pin and spring?

 

[Nitrocrushr]

Yes, I clean out old grease from the safety mechanism, and pack it up with Weapon Shield grease. It’ll keep the safety operating smoothly


Steve