22lr ar15 conversion

[sdallace]

Anyone with any bad experience with the CMMG conversion bolt?

Id like some insight before purchasing preferably from someone who has had one for a while and put it through some shooting.

[cwin]

I had one. It ran fine but I wasn't that fond of it. I ended up buying a dedicated .22 and liked that much better. It was fairly reliable.

[Thatoneguy24]

I have had my CMMG Evolution kit for about a month. It took about 100 or 150 rounds to really break in, but it might have also been affected by other factors. The magazine that comes with it can cause malfunctions and FTF. I had several rounds feed into the upper ramp and wedge at a 45 degree angle between the bolt and the chamber. I got 3 BDM mags (the cadillac of 22lr conversion mags) from 44mag.com for 10 bucks each. 0 malfunctions after that with a mix of CCI Mini-Mags, and Federal Bulk. I also coat the thing in Frog Lube, and it seems to love that. Cleans well and quickly too. Overall it is a decent piece of equipment for $150 less than a decent dedicated upper. But be prepared to clean it every 100 or 150 rounds, sometimes it gets very dirty and starts "keyholing" and accuracy is effected. For what it is, I say buy! It is hard not to buy it when it pays for itself in the first 600 or so rounds versus 5.56. Shoot all day, train all day, clean for a few minutes, and save hundreds $$$ .

[sdallace]

^ that is helpful. I guess the whole "train for less" is a pretty great idea. I guess this is less than a box of .223 or 5.56 so it would pay for itself in the first day of using it.

[AJAX22]

They work.... But I prefer the m261 conversion

I also own the colt drop in

M261 is a Damn good value

And blackdog makes mags for it

[sdallace]

Amy particular reasonfor preferring that one? Have you tried many others? If consider with more info.

[TheExiled]

I have around 500and rds through a cmmg, the stock mag gives a ftf about every 30 rounds. I take it as more practice

[HK Dave]

The dedicated upper is so cheap nowadays, I'd go for that instead.

Personally, I built a full on 22lr CMMG rifle complete with all the options... allows me to get all the practice i want in... have a working paddle, lock back at last shot, detachable mags.

Hmm now that I think about it, when i do a tac course with 5.56... on average I go through 400-500 rounds... so say $200 in ammo...

Same course with 22lr... $18

One course would pay the difference between a conversion and a complete upper.

No brainer.

Anyhow take a close look at the CMMG with all the options... and you will need the right mags to make it all work together.

One thing though.... the rail on the bcg will wear after a few thousand rounds... and eventually break. But it's a cheap piece that is easy to replace.. like $15 or something.

[emy]

I have the conversion,it needed some tweaking to get to work properly, I also have the early version made by CIENER and that one works with no problem. Don't buy the one with the O-ring . they are good to get lots of trigger time just don't expect a target gun. Try different ammo and see witch one works consistent with your gun, and stay with that one

[sdallace]

http://www.primaryarms.com/CMMG_AR_15_M4_LE_Evolution_Complete_Upper_Assembly_p/cmmg22b7ce6.htm

So something like this would be more reliable and much more accurate id assume. I didn't think to look for a complete upper

[MistWolf]

I have the CMMG conversion kit. Lubed it up and dropped it in and it ran fine right out of the box. The mags fit tight as they are supposed to be trimmed for the best fit in your rifle. I haven't trimmed mine yet (laziness on my part) and they are a pain with a bullet button. Had a couple mag related malfunctions at the start but after a couple uses, they have proven to be fine. One mag came with the kit and I bought two extras at the same time. I don't recall who made the two spares.

The CMMG conversion has been trouble free, even while running it rapid fire. I haven't really cleaned the rifle after shooting the conversion kit and have had little trouble. The exception was during one session where a steel case got stuck in the chamber after a mixed use of the CMMG conversion, steel case and brass case. A steel case got stuck and required dropping a steel rod down the barrel to knock it out.

Accuracy from a 16" SS 1/8 twist is as good as any .22 rifle I've used in the field and I'd not hesitate to hunt small game with it. Point of impact with the CMMG conversion closely matches point of impact of full power ammo at practical .22 ranges. We've run 500 rounds through it so far. CMMG recommends using hi velocity ammo for best reliability.

The CMMG conversion is inexpensive- I got mine new with two mags for under $200 from a shop on GB. It also lets me use my everyday upper and optic. It is well worth the cost

[bohoki]

i have the stainless cmmg it works for me i have a m261 and 3 inserts and the manual ,it has problems at least 3 stoppages in a mag but maybe i need to use the buffer to stabilize it its like they just stop about 2 millimeters from being in battery

i got the black dog magazine with the steel lips and it is super good with my cmmg kit

i want to sell my m261 but i don't think anybody would give me $150 for it

[TheExiled]

I have the conversion,it needed some tweaking to get to work properly, I also have the early version made by CIENER and that one works with no problem. Don't buy the one with the O-ring . they are good to get lots of trigger time just don't expect a target gun. Try different ammo and see witch one works consistent with your gun, and stay with that one

My 1/9 twist AR can hit the 100yd steel at Angeles 10/10 with the CMMG conversion and CCI mini mags and iron sights. I cant complain about that.

[zomie]

The first time I used mine it went full auto. Make sure you run a lighter hammer spring with one. After tweaking I get it to fire somewhat reliable. I would say I get 1 misfire out of 50 shots. Overall it is fairly fun, and I like that I can take my rifle to an indoor range without issues. They are a nice item to have.

[sdallace]

Yeah I was looking at full upper reviews and at cost I could almost go 9mm. But that would defeat my purpose.stupid gun addiction