Trouble removing piston in AAC TiRANT 45

[lifesizepotato]

I'm having trouble removing the ASAP/piston from the back of my early AAC TiRANT 45 (2-digit serial) silencer. In videos and the instructions, it makes it seem like you just twist it off, but mine won't budge. I've never had it off before, and it's had a few thousands rounds through it, so it may be seized or something.

Any suggestions on what I could do? Boil it? Bake it? Freeze it?

[cpatterson86]

I'm having trouble removing the ASAP/piston from the back of my early AAC TiRANT 45 (2-digit serial) silencer. In videos and the instructions, it makes it seem like you just twist it off, but mine won't budge. I've never had it off before, and it's had a few thousands rounds through it, so it may be seized or something.

Any suggestions on what I could do? Boil it? Bake it? Freeze it?

Soak it in Kroil overnight and then put the rear cap in a padded vice and turn the tube counterclockwise. You may need a strap wrench depending on how much build up you have in the interface. I wouldn't go more than 5-600 rounds in the future without at least busting it loose.

[lifesizepotato]

Thanks, I will try that. I will be sure to loosen it every 500 rounds or so in the future.

[rimshaker]

Sounds like the piston housing might be carbon locked. Next time apply some grease or anti-seize on the tube threads. You never swap out with other pistons?