I built a trio of Form 1 cans several years ago. Steel externals, a blast chamber spacer (have no idea of the material) and then slam full of freeze plugs. I had the opportunity to meter them with Rugged one day, and they actually performed quite well (compared to SiCo Sakers and YHM LT/ULT).

I managed to reduce the weight a bit by having them turned down between the threads. They were 7”, 8” and 9” long with the ends installed, and weighed roughly 21oz, 23oz and 25oz...and that’s after losing 6-9oz during the turndown. I made one with a 1/2-28 DT, one with a 5/8-24 DT and the last has a YHM adapter. They’re all threaded the same, so I can swap those pieces around without ever having extras (if one were to worry about that type of thing). Anyway, they looked like this after a DIY cerakoting in burnt bronze:



I’ve bought enough commercial cans to dedicate one to each host, so these just kind of sit around. I’ve seen some of the work that ECCO has been doing and started a conversation up with him about recoring these. My ultimate plan was too end up with a tubeless design that still used my end caps, while losing some of the weight. Since we’re allowed to shorten them during a repair, I asked him to just take a little off each one.

As of now, he’s done all the machining. What’s left is the heat treating and welding. As it stands, the new measurements are:

6.6” = 13.8oz
7.5” = 15.4oz
8.5” = 17.1oz

He cut my original tube down to use as the blast chamber and internally threaded the end of it. (We has to keep part of the original tube to appease the ATF, and I also needed a larger blast chamber to handle the YHM QD devices). Made a blast baffle that threads into the blast chamber. Made a stack of cones the same OD as the blast chamber. Then made a last baffle with a larger OD that will accept my end cap and give the whole thing the same “dog bone” shape it originally had. The blast baffle will also get welded to the blast chamber, and the entire stack welded together.

I’ve asked him to take some pics along the way, and he’s been gracious enough to send me some. I’m not going to post them all until I have the cans back in my hands and re-Cerakoted, but here’s a sneak peek.



I am blown away at what I’m seeing so far.

I have three more that are Ti tubes full of FPs. Just to do something different, he’ll probably be getting those next year for a recore using a serviceable baffle stack.

This pic shows the blast baffle on the left, with the external threads that allow it to thread into the blast chamber...which was my original tube. The middle baffle is a standard baffle which is welded in place. The one on the right is the last baffle, internally threaded to accept my end caps.

Today’s pic selection...measuring/cutting the tube to make a blast chamber that can handle the YHM QD FH:

Somebody has been busy...

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The stacks are all made to handle .30 cal.

I’m working on building a 9mm AR pistol with a recessed F1 silencer. I bought the upper from PSA (4” barrel) that had their slimline rail and a flash can, but wanted a longer rail. Found a 9” rail of the same series and asked the seller to measure the ID. I already had some pipe I was going to use, which is 1.25” OD based on reviews I’d read online about these rails.

Seller said 1.34” or so. Problem is I didn’t specify and he didn’t look, and that measurement is only for he first 1.25” or so:



So...in this last box of goodies I sent ECCO, I included that rail and the tube. Didn’t take long until I got this pic from Nick:



Looking forward to getting this one assembled. Ought to be a compact little sucker.

All my stuff is headed back today. Already touched base with THSF for engraving the two newest ones. And they’ll be dropped off next Friday for Cerakoting.

A couple shots of the tubeless recores.

He’s on this site, and posting in this thread.

Sixtysixdeuce

Not counting some of the extra little stuff I asked for, he quoted $330-$390/ea for the three tubeless recores. Different prices because different number of baffles.

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I didn’t have a 12pt socket and grabbed a Kobalt at Lowes for ~$4. Fits like a glove.

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For anybody holding there breath...I’m not going to make the metering event next Sat. Between AT&T being on strike this week, the Cerakoter having a shopping delay, and my son’s cross-country meet on Sat that got rain delayed a week, it’s juts not going to work out.

Hoping to make it to one of the events next year. And by that time maybe I’ve had the other three cans recored by ECCO.

Trying to wrap my head around this - so, the “recore” actually consists of all new baffles welded into a tubeless stack, using your existing endcap (which is the engraved part) and the old tube is simply cut down and remade into the blast chamber?

If nothing else, that’s a great reason to engrave your endcap instead of the tube, although I suppose you could do the same thing as long as you were using the part of the tube that’s engraved.

Doubletap

3-shot burst, apparently