Long story short, I'm close to "going all-in" on Griffin's EZ-LOK for my handguns. Unfortunately I own the Tirant 9M, and the EZ-LOK AAC piston is only for the Tirant 45 which is not compatible with the 9. So I wonder if I can replace the entire booster, perhaps with Griffin's booster + a Griffin EZ-LOK piston? That booster is for 1.2875x24 tube bodies, but I can't find the tube threading for the Tirant. ATM best I can do is use a measuring tape, and the outer threads are ROUGHLY 1-3/16" or 1-7/32" which comes close. Hoping someone happens to already know if this will work.

Also any comments about EZ-LOK are welcome. I have the Tirant and the SiCo Hybrid 46m, planning to order the CGS Mod-9. I will be hosting them on Glock 17's, a P320, a FNX-9, and maybe a Glock 21 for the Hybrid. Longterm plan is to get them all SBR'd and add USW conversion kits. My main attraction to the EZ-LOK system is retention and swapability.

Check out Ecco machine. They might have a booster that fits the TiRants native threads.

Thanks a lot for the recommendation. AAC had to use a non-standard 1-5/16"x28 thread, therefore the booster is a regulated suppressor part. I have to send it in to Ecco for them to fit their booster and destroy my old one. Shoutout to AAC for documenting NONE of this and wasting a ton of my time.

One of the cool things about the new Ti-RANT 9M-HD is it uses the Ti-Rant 45 backend, so you can use Ti-Rant 45 pistons, which means you can use Griffin EZ-LOK :)

Jay
PEW Science

I get that but it'd be nice if they listed their threading somewhere. And if they were more clear on the different TiRant models. Currently the only tirant 9 pdf manual I can find has at least a page missing. And I can't find any info that clearly distinguishes between the 9, 9M, and 9M-HD, other than modularity, and the 9M-HD's have larger pistons. But I'll call them and give it a shot, thanks for the idea.