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Posted: 6/19/2026 12:07:19 PM EDT
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So as not to muddy up the other thread too much, here are my first shots, impressions, and an overview of the can. The Infinity 556K is a Haynes 282 3D printed LBP suppressor that’s tunable via 3 different removable end caps (solid, medium vent, full vent). It ships with the medium vent but I’ve got all three for testing, and I’ll include those results in the full review. There’s also a muzzle brake option which I’ve got on order and am very interested to try. The end caps appear to be a proprietary thread pitch, and a wrench is included, as well as a polymer vice block/clamp for the suppressor. This is typical for OCL and a touch I appreciate, as trying to clamp a suppressor with a stuck HUB adapter can be a pain if you’re trying to save the finish. Speaking of finish, mine is in the raw. Looks pretty cool, maybe I’ll paint it, maybe I won’t. Dimension are 5.5”x 1.75” and 15.8oz, so it’s a thicc can but not terribly heavy. The blast baffle appears pretty deep so you should have no problems with most mounts. For this first look I ran it on my 14.5 Block 1 clone, using the full vent end cap. Sound performance was excellent and it was totally comfortable to shoot without ear pro. Backpressure was also basically nonexistent and I didn’t get any gas to the face in rapid strings of 3-6 rounds, nor when shooting lefty. I was really impressed with how the Infinity 556K performed and I’m looking forward to running it on more hosts. On that note, the bore is actually a 6mm, so for the full review I’ll definitely be running it on my 6ARC. I’ll also test it on 16”, 11.5”, 10.5”, 13”, and maybe one or two other lengths in 5.56. I’ll also be doing my standard flash test (3 rounds of M193 from an 11.5”) both with naked eye and NV. I’ll also test backpressure using a Riflespeed AGB, along with doing some FRT mag dumps. I’ve also had some requests to compare it to my Rhino X (and a Rhodie 6/K if I’m able to get one), so I’ll do that and toss in the OG Polo K for good measure. Stay tuned for more but I can definitely give this can a solid recommend right now! Big thanks to @AndrewKing for sending it out. |
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Originally Posted By SpankMonkey: Great review OP. There was almost zero gas coming out the eject port and the sound was awesome with a full open end cap. Loved the full details. You never see that with any channel. Appreciate that! I try to get down to the nitty gritty details in the first look video so I don’t have to spend as much time on them in the full review. |
| Have you tried the medium cap yet? The price is intriguing but I kinda wish it came with the high flow cap. I'd probably get the other caps down the road but the price of the single cap option is a lot more likely to get approved by the budget department. |
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Originally Posted By GreenMushroom: Have you tried the medium cap yet? The price is intriguing but I kinda wish it came with the high flow cap. I'd probably get the other caps down the road but the price of the single cap option is a lot more likely to get approved by the budget department. Not yet! I will soon though. I’ll do a lot of my testing with that cap since that’s what it comes with. |
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Originally Posted By GreenMushroom: Have you tried the medium cap yet? The price is intriguing but I kinda wish it came with the high flow cap. I'd probably get the other caps down the road but the price of the single cap option is a lot more likely to get approved by the budget department. I've been using the medium end cap a bit and it's definitely more backpressure; on an untuned gun it's probably louder at the ear. With the full vent it's very pleasant to shoot on a 14.5 and even a 10.5. |
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Originally Posted By bluedog82: I've been using the medium end cap a bit and it's definitely more backpressure; on an untuned gun it's probably louder at the ear. With the full vent it's very pleasant to shoot on a 14.5 and even a 10.5. I got the base kit, so it came with just the medium end cap. I'm wondering about the high-low end cap, have you been able to shoot it much at night or with NV? |
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