Who makes the best and the cheapest .22 conversion? and is there any problems with using one?
CMMG makes a cheap one but I like my Spikes kit better. Runs great in my SBR and it cleans up nice…
I don’t know who makes the “best” (maybe Spikes) but I’ve had good experience with the CMMG variant in the 5,000 or so rounds I’ve shot through it.
I got mine from Palmetto with three Black Dog Mfg. magazines for like 169 or so.
I have the standard, park’d CMMG kit and have put over 2,500 rounds through it and love it. I had a couple hiccups during break-in, but I expected it. I love it though! After showing off mine, I got three more people to order a kit for their AR’s. All have been performing great in a variety of rifles.
I have an older ceiner kit that I got long before the CMMG kit was available. If I were doing it again I would get the CMMG through Brownells due to their return policy and customer service.
I have been very happy with my Spikes.
I also have an older Ceiner kit, and if I was buying one again today, I would also buy the CMMG through Brownells.
I am planning on getting one of these in the near future, mid to late August, and am wondering what kind of problems to expect during break in and aproximately how many rounds it takes to break in.
Also would it be better to get a stainless one or a parked one?
What mags work with the cmmg kit?
What weight buffer are you guys using?
The conversion kits don’t use the buffer/spring to cycle. There’s no where near enough force from .22 LR to cycle the action if they did. Or is this an unrelated question?
What mags work with the cmmg kit?
I believe the Black Dog Mfg. magazines are regarded as being among the best. I’ve had good luck with them, they are durable, and you can take them apart for cleaning.
Also would it be better to get a stainless one or a parked one?
Both will work fine. The stainless and nickel models will probably be a little easier to clean. With my park’d model, I just soak mine in some CLP, and most of the carbon rubs off easy enough.
And for anyone looking to order, this is the lowest price I’ve seen online so far. You get a choice of 3 free magazines form either CMMG or Black Dog.
I had a couple FTE’s on the first 100 rounds with mine, but it has been perfect the 2,400 rounds since. The other three kits I know of haven’t had an issue, ever.
I’m using the park’d kit. I wipe it down with some brake clean or denatured alcohol on a rag, then put a light film of motor oil on it. Every now and then, I’ll run a swab or .22 brush in the extention on a drill. I have went for more than 700 rounds between cleaning without a hiccup, and normall go 300-500 between cleaning.
Remember to wipe out the inside of your receiver and barrel extension when you’re cleaning the kit. I also run a couple rounds of .223 through it to clean out the gas port, or shoot down the gas tube with compressed air.
I have had great luck with CMMG and Black Dog mags.
As mentioned above, it doesn’t use the AR buffer to operate.
I got mine for $150 with 2 26 round mags.
Heres the “buffer” I made for my .22 parts gun. Its a plastic rod that I cut to length.
As far as parked or not, I have the parked CMMG unit. I wish I had gone with the Spikes instead. After all the dis-assembly, polishing, and replacing the extractor with one from Black Dog I spent just as much as if I had just bought the Spikes bolt in the first place. I keep it oiled with some lube that my Father-in-law picked up called Strike Hold and it runs flawlessly. The only problems I have had in the last 1500 rounds after re working it has been one stove pipe and one mis-fire. The BDM and CMMG mags both work equally well, but the BDM mags are preferred.
Was there something wrong with it that required disassembly, polishing, and replacing the extractor?
Ruger makes the best rimfire kit. It’s called a 10/22. 
Got one, but uh, it doesn’t quite simulate my AR the way…my AR does…
The CMMG kit specifically call out Remington ammo as not recommended but does not elaborate.
Bummer cause I’ve got a footlocker full of that brand, any ideas?
I’ve run lots of Federal Wal-Mart packs, Winchester 333 packs, and Remmy through it, just fine.
Remington 22lr bulk SUCKS, all I can run in mine is Federal bulk…
I run the Federal 550 bulk packs here, exclusively.
It would jam about every second or third shot no matter what ammunition. The cause turned out to be several things: 1)The extractor hook was crap and not getting a firm grip on the rim. The BDM extractor fixed that. 2)The park on the whole unit was very heavy. Polishing all of the contact areas including the firing pin and the guide channels took care of this. 3) There was a bur in the guide channel where the hole for the extractor roll pin was drilled, causing alot of drag. A jewlers file fixed this. If I had bought the bolt from a retailer like Brownells I would have returned it, but I was able to fix these problems and now I am completely satisfied with it. I have the best luck with the Federal bulk and CCI mini mag.