My 9mm can doesn't work

GA Firing Line

Leshaire

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Mar 27, 2015
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I've had an AAC Tirant 9 for a long while now and all the sudden it stops my Glock 19 from cycling and gets hung up on itself. I can only really explain this with pics, so here they are. Any ideas?

Post shooting
6b4a7299-79cb-4e3a-ac27-a0a2421d2483.jpg

Close up
5d346c7a-6d68-41f2-bf55-071a98f28f3c.jpg

This is what it should look like, but I have to manually pull it back to this position.
3f8b0564-e6ca-4c03-a2af-87a7d6d1227a.jpg
 

NWS

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Do you have the booster spring installed?
 

Leshaire

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Do you have the booster spring installed?

17bd038d4c397076ee37948930f8a797.jpg


Soaking to be able to get it apart. Pls hold.



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Leshaire

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Clean the springs and piston and teeth where piston makes contact. I bet it’s just gunked up

I honestly don’t even know where to start. Some of these pieces I could never reach the insides.


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Red Dawn

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I honestly don’t even know where to start. Some of these pieces I could never reach the insides.


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Get a 762 plastic chamber brush and put it on a drill SLOWLY or tumble it for 2-3 hrs
 

Leshaire

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Ive got 762 metal and cotton bushes I could put on my drill?

No tumbler unfortunately.


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NWS

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Is it steel or aluminum? If steel, dip it.
 

Laufen

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Good to know. That betch hasn’t been lubed in the 5+ years I’ve been shooting with this can.


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I had the same issue with my Gemtech, it was dry as a bone. Cleaned it up and put a little light grease on the piston and contact surfaces and it works like a champ.
 

Leshaire

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Mar 27, 2015
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I had the same issue with my Gemtech, it was dry as a bone. Cleaned it up and put a little light grease on the piston and contact surfaces and it works like a champ.

Good to know. I have cleaned it a handful of times but don’t recall ever lubing anything other than the inside of the actual tube. That was just so that I could get it back apart after 500-1000 more rounds though. I will try cleaning it real good and lubing the piston.

This actually makes a lot of sense considering the piston and that outer part touching it are the ones that appear to be getting stuck on one another.


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SouthernSlammed

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Likely a good cleaning.

Watch slow motion of the booster, learn how much its movement helps with cycling. Doesn't seem like it's much to mess up.
 

Allsmiles

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Also, make sure your piston isn't grooved. Hard to tell in pictures. Lube you piston and spring, red lock tite on ASAP parts unless you want them backing off.