I'm surprised your muzzle brakes and comps weren't sellers.
People are cheap, man. That's why I was asking the OP about pricing. A lot of people get really excited about cool stuff until it comes time to open the old wallet.
I've moved a few, but guys buying M&P sports & DPMS budget rifles, or throwing together $400 rifle kits on $50 lowers in this stupid cheap AR environment seem inclined to buy heavy cast steel $15 chinese knock-off comps on eBay rather than spend 15-20% of their rifle's cost on a lightweight custom US made Ti muzzle device. Doesn't help that I've no name in the industry either, though. ECCO Machine & Fab is a new company of mine with very limited exposure; I don't even have a dedicated website yet, just a page on my other site.
We're still working on it. I've played with a lot of different ideas. Had one that adversely impacted accuracy, so it was scrapped. Another worked well, but you felt the blast on your face, so it's history, too. The two in the first pic, 4th and 6th from the left,
almost work too well on a semi-auto, causing the muzzle to dip slightly (never lose sight of the target due to muzzle climb, though!). They sure were awesome on an M16!
The 3 port brakes do a great job; this is the muzzle of my 4.6 lb featherweight, which has less felt recoil than my 6-1/2 pound carbine with a YHM Phantom. Slightly longer than the one's I've had for sale, as I needed to make 16" with it pinned on a 14.5" tube:
This 48 port brake I did on my .308 AR worked out well, too. A little more flash through the NVRS than a bird cage, but tolerable
I know a lot of people don't like shiny natural finish, either, so we're going to offer dull beadblasted & Cerakoat options. Beadblast or black cerakoat is free, ODG and tan probably will be too. Other colors may incur cost.
And sorry to thread jack, OP. I'll open a new thread if anyone else wants to discuss the brakes.