If you get a kit, get the CMMG all stainless. The black kits are garbage.
Mine is not, just got one than had been back ordered from Midway for about five months. Your post made me a bit concerned, as I'd ordered the "black" kit with three magazines, so thought I bring back this thread.
Ran 300+ rounds of Federal bulk pack through it today in my 7.5' 5.56 SBR upper. No issues other than a couple of dud rounds. The three gray mags it came with worked great as did the Black Dog mags I brought along so I could shoot instead of re-stuff magazines.
I suspect I won't like how dirty it made things (going to clean it after lunch), but it was the cheapest way to get my wife and I both on the firing line shooting .22lr SBRs (we already have a 6.5" CMMG AR pistol converted to an SBR and my wife doesn't want to be anywhere near me when shooting the 7.5" 5.56 so I might as well shoot .22lr out of it when she is there
Was also very happy that the POA/POI was insignificant at 20 yards shooting 3.5" steel plates, and was only about 2" low at 50 yards compared to the 5.56 zero I'd set for this red dot.
Re: the magazine issues, I'd strongly suggest something that uses the Black Dog .22 AR mags, they fit standard unmodified AR magwells and work great. I've had a few cracked feed lips, but Black Dog replaced them for free, or $5 each to upgrade to the "metal" lips version. I'm only buying the metal lips versions from now on and will update any of the remaining ones that break. These also appear to be the same mags supplied with different "plastic" for the SIG 522 (lighter, translucent brown) and the CMMG .22lr guns and conversions (heavier plastic, gray or black). As far as I know the "Colt" mags only work with the Colt AR-22 and the S&W AR22 mags only work with it. I don't see major price differences, but the Black Dog seemed more available before the craziness set in.
Edit:
Cleaning wasn't too bad, although 500 rounds in a session would be a more normal usage for us. What probably surprised me the most was how much carbon and lead caked on the gaps of the flash hider. Its not an A2, its a Gemtech HVT mount as initially I thought I'd use my .308 can on it (5.56 cans are generally rated for ~11" barrels or longer, but its really too front heavy to enjoy using it this way. I haven't noticed this on the A2 that is on the 6.5" CMMG pistol we converted to an SBR.