u/fusionvic

Had a Criterion 16" barrel w/ carbine-length gas system (0.066" gas port) with the SureFire OBC, Geissele Super 42/H3 at the range with the SF 3-prong flash hider. Ran 77gr SMK, 55gr American Eagle, M193, etc... and with the RC3, the ejection pattern was 4:00 to 5:00 in a neat pile.

Edited to Add: I did try their shorter buffer on the MK18 (which extends the travel of the bolt carrier and slows rate of fire) but found the Super 42/H3 to work better. It felt like the Super 42/H3 slowed down the action more and reduced the recoil even more than running their shorter buffer.

To the shooter's ear, it felt about the same as the OCL Infinity w/ vented 7.62 cap and the HUX Ventum 762 and Flow 36. The Omega 36M and OCL Polonium are quieter for sure but to my ears it was hard to quantify other than "yeah the Polo is quieter"

I had someone else try my RC3 as I stood next to the shooter and I only kept my passive plugs in place. I didn't experience any concussive blasts or observe flaming fireballs spitting out. That person was impressed enough that he now wants to get a suppressor.

I've already tried another OBC on my MK18 and was sold on it since I didn't get any gas to the face with an OCL Polonium.

The OBC has an additional 2 oz sliding counterweight and while you're supposed to run the shorter buffer, I went with the Geissele Super 42/H3 the last time and observed full functionality but with reduced recoil. So the overall sliding mass is actually greater than H3 but it cycled fine even with Federal AE 55gr FMJ. On my 16" equivalent to a Colt 6920, it was ridiculously soft shooting.

I didn't have any trouble removing the RC3 either, nor did I observe any gas leakage. I did smear a thin layer of ceramic anti-seize just because I want added insurance that it'd come off. I did notice the spring mechanism for the latch was kind of janky, like it'd get stuck and I had to jiggle the can slightly while twisting the collar and pressing the latch.

I may try it on my MK18 depending on how I feel and whether I want to swap out the Rearden R2S for the SF 3-prong FH.

TL;DR The RC3 felt the same as an OCL Infinity w/ vented 7.62 end cap, HUX Ventum 762, or HUX Flow 36. I didn't see any sparking or flames. Based on all the Reddit and Internet experts, I was expecting it to be a super heavy POS boomy fire breathing blast diverter but was pleasantly surprised.

I hope this helps.

Recall I had experienced 6" or more of POI shift at 25 yd with a suppressor on a 6.5" 9mm Gen 2 Vector. I have tried numerous mounts: Plan B, Key Micro, 3-lug, direct thread, all with the same results.

I decided to try the 45 recoil spring based on the idea if the bolt is coming back too fast and too early, the vertical slider/carrier might contribute to this POI shift as it is a straight up 6" shift. I also installed the Rugged M2 brake and used the Rugged dual taper mounts on a few suppressors (namely the short Obsidian 9 as this combo was what Kriss uses to test their Vectors). I ran the HUX Flow 9k as well as the ECCO TLX 5.5"

With the 45 recoil spring and the Rugged M2 brake using those cans, I observed only 3" of POI shift going straight up. To rule out other variables, I decided to shoot the Vector sideways to see if the POI shift followed by the motion of the slider/carrier. Sure enough, shooting it sideways with the ejection port aimed down, the POI shift was straight 3" to the right.

I did not notice any huge change in gas blowback between the Flow 9K, Obsidian 9 (short), or the TLX. I did notice the TLX yielded the tightest grouping I've ever seen from this Vector at 0.5" 5-shots at 25 yd (WWB 115gr FMJ). The TLX is a lightweight titanium can with traditional baffles (dual clipped) and honestly there wasn't much gas to the face.

The POI shift is still rather excessive and appears to be caused by the vertical recoiling motion of the slider system.

I know everyone is all about just spraying and praying at short distances but I figured this might help someone else out there in the future.

For those curious about the Titanium Milanese, I decided to get one since I was impressed with how comfortable the Garmin Titanium Quick-Fit was on my Forerunner 935 (that I use daily for sweaty outdoor activities/fitness) which had a knock-off Ocean Band.

My Ultra 2 came with the Ocean Band because I didn't like metal bands at the time. The Ocean Band is fine except it is very stiff and hard to put on/take off due to how hard/stiff it is - it still manages to be "sticky" enough that it is hard to take off jackets/clothing.

The Titanium Milanese Medium weighed in at 1.16 oz, while the Ocean Band was 1.20 oz.

I used it for fitness activities and normal daily routine stuff. I find it is comfortable and not bulky at all. I can slip in and out of jackets and long sleeve stuff without the band gripping anything. No issues with sweat or water.

I saw some reviews mentioning the huge gap at the 12:00 position due to the chain mail not completely bending, but it doesn't seem a big deal to me. With it adjusted so I can slip a pinky under the clasp, it's almost like I don't feel I am wearing anything.

However, while running I can feel the heavy weight of the watch itself kind of moving around but visually I don't see it shifting out of place. I weighed both my Garmin 935 w/ Titanium band and the AWU2 w/ Titanium - they weighed exactly the same. It must be the weight distribution because the 935 is a plastic housing and featherweight.

The problem I have with the Titanium Milanese is the chain mail links tend to pinch my skin a bit but only while doing routine stuff in certain positions. While running, I never felt the pinching. When cleaning it with a microfiber I can see how the chain mail tends to grab/pinch some of the fibers.

Another major issue is the potential for the buckle to scrape or damage the Sapphire crystal and/or Titanium housing. You really have to watch that buckle when releasing the strap and removing the watch. If you quickly pop the buckle and max out the strap length (to remove the watch) it can whip that buckle and slap the crystal.

I kind of wish Apple just made it a more traditional Titanium linked band with a regular style clasp. My genuine Garmin is also black DLC titanium and I thought I had scratched it already but remembered its probably material transfer, and a pencil eraser quickly but gently removed some stainless steel transferred material. So far I have not see anything on my Apple Titanium Milanese band.

Overall: I'd say it is worthwhile to select as the first band to come with your Ultra watch. In retrospect I probably should have gone this route instead of the Ocean Band. The Ocean Band is great - it ventilates well in the summer while sweating, but it just feels stiff and bulky compared to the Titanium Milanese.