My 9mm can doesn't work

[Leshaire]

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


Close up


This is what it should look like, but I have to manually pull it back to this position.

 

[NWS]

Do you have the booster spring installed?

 

[Leshaire]

Do you have the booster spring installed?

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



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[Leshaire]

Do you have the booster spring installed?

This is what was installed.

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[Red Dawn]

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

 

[Leshaire]

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]

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]

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

No tumbler unfortunately.


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[NWS]

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

 

[Laufen]

This is what was installed.

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Don't forget to lube the piston..

 

[NWS]

https://goo.gl/images/3TbnAF

 

[Leshaire]

https://goo.gl/images/3TbnAF

I guess I’ll give it a good cleaning and then try it again. Just doesn’t seem like a gunk issue but I’ll definitely try anything.


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[Leshaire]

Don't forget to lube the piston..

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


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[Leshaire]

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

Idk what is what. The user guide says it is constructed of titanium, steel and aluminum lol

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[Laufen]

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]

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]

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.

 

[Red Dawn]

@Leshaire I use a conservative amount of Fire Clean on my baffles and pistons after cleaning seems to help but smells like bacon cooking for a couple rounds then I want a baconater from Wendy’s when I’m done

 

[dial1911]

@Leshaire I use a conservative amount of Fire Clean on my baffles and pistons after cleaning seems to help but smells like bacon cooking for a couple rounds then I want a baconater from Wendy’s when I’m done

Thompson Center "bore butter" here.... definitely helps with the next disassembly.

 

[Allsmiles]

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.