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 You're here: Gun Gear-->Gunsmithing-->Conversion Kits
Manufacturer: Cheaper Than Dirt - Mfr# ARR059
Shoot more and spend less, convert your AR-15, .223 to .22-LR and save enough to pay for the conversion in about 1,000 rounds! Make you rifle dual purpose, in seconds you can convert your AR-15 to .22-LR and use your rifle for training, varmint hunting, sighting in, shooting with the family or low cost plinking. Allows you to shoot more places, quieter, less danger, less back stop required, you can even shoot indoors. All AR-15 Conversion come in a hard, fitted case with one 10 round magazine, easy to install in seconds. Drops into the receiver in place of the bolt and aligns with your barrel's bore, very accurate, not permanent and No special permits required to own. Complete with one 10 Round magazine; manufactured in the USA by Jonathan Arthur Ciener. Comes with one year manufacturers warranty. For extra mags, see our item # MAG-051.
Cheaper Than Dirt ARR059

Average Customer Rating:
Out of 24 Customer Reviews!
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 Graet for big shooters., 06/29/2008
Reviewer: Jason
This conversion kit is one of the best investments since my Stag Arms AR. It shoots flawlessly. Just yesterday I was shooting jack rabits with this plus my Aimpoint Comp M2 and couldn't miss. I will give this 5 bullets anyday, but I also strongly recomend wearing eye protection while shooting this because I have been hit with some fragments of hot gunpowder while shooting this. But don't let this discourage you to buy it because it doesn't happen that much, isn't that bad when it happens, and is just something a lot of semi or fully automatic guns do.
 AR-15 .22 conversion kit, 06/11/2008
Reviewer: Yuma, AZ
The first time I used the Ciener kit, I had a lot of failures-to-feed, even tho I'd cleaned and lubed it before shooting. I took it home, cleaned it and lubed it and then lubed it some more. I just got back for shooting high velocity 40 grain loads and standard velocity loads and it ran like a top, except for the first round that failed to fully eject. The kit is more accurate than I can hold. I'd recommend it for anyone with an AR-type rifle. One of the reviewers had problems using the kit with his S&W M&P15. I've got the -15T version and don't have a problem with it as long as it's well lubed. Not many things are fun and inexpensive these days - this is one of them.
 Accurate and reliable, 06/09/2008
Reviewer: Frank
This kit works very well with the factory 10 round magazine. No malfunctions in about 100 rounds with that mag. Shoots into 1" at 50 yds in my Bushmaster Carbon 15, which has a 1:8 twist barrel. The two Blackdog 30 round magazines I bought gave me a lot of trouble with jams. They are the older, skinny style magazines still available. Empty cases kept jamming between the end of the charging handle and the kit. It took awhile to figure out that you need to leave the charge handle forward and push the bolt back with your finger to clear it. Cases and case pieces jammed in other locations also. The plastic mags seem to drag on the bolt as its cycling. Even with some smoothing and trimming, I couldn't get them to work. I plan to return the mags and buy some Ciener 30 rounders. It was very cool seeing bullet holes appear in the target down range without much sound and no recoil. This kit is a great option to have and should work very well in teaching shooting to any new shooter, but especially children.
 Lots of fun!, 05/28/2008
Reviewer: RemMax
I have both the original military M261 as well as the Ceiner M16 conversion kits and love them both! The Military surplus M261 is semi only but works perfectly with the 10 round mags that fit inside a .223 mag, the Ceiner can fire in full auto only if you buy the kit specifically for the M16, it has a Sear Trip to operate the auto sear included with it that the AR15 kit does not have, (of course unless you have a M16 you don't need that part) in a registered receiver M16 it works very well at doing 30 round mag dumps with little maintenance. These kits are lots of fun, a lot cheaper to shoot and the point of aim is only about 6" lower than .223 at 100 yards. I frequently use mine with my Gemtech Out Back, Aquilla 60 grain SSS and a 1in 9 twist barrel, it is very quiet and very accurate. It is like the SSS ammo was just made for this application! As for cleaning your .223 gas system I always make sure to carry a mag full of .223's with me and just fire them when I am done for the day, this cleans out the gas system and ensures the firearm is ready to operate next time (though I have never had a problem) I would definitely recommend these kits for anyone wanting to have fun plinking for less $$$. Ammo these days in out of sight! Excellent investment for the money, sure to bring a lot more use of your AR15 than firing .223 alone. Buy one and enjoy your time at the range
 Buy it now!!!, 05/21/2008
Reviewer: Mr. D.
I purchased several of these after I used a friend's .22 kit, (I tried to wear it out). A little stiff out of the box but all work excellent after breaking in. You can either shoot it or lightly run a flat file over the slide rails, top and bottom, to break it in. You are NOT filing to remove metal just to "wear" it in, smoother than it is. These kits like generous amount of REM-OIL spray (Item #: 66946). I've shot mine in both full-auto and semi-auto with no mechanical problems. Black Dog mags are an excellent accessory for this kit as well.(Item #: MAG-081). Accuracy is decent out of a "old" 1-12 twist 20" M16 barrel using Fed Valu-pak ammo. Bowling pins at 100yds, open sights, every time. Don't expect match accuracy.
 Get x-tra firing pins!, 05/14/2008
Reviewer: 9th Engineer
The kits works well enough. I find that the firing pin is good for about 3000 rounds before it's FUBAR. Get some spares or learn how to make one from a AR15 firing pin.
 Good for 30 rounds, 05/11/2008
Reviewer: qcman
Took mine out to the range today. Worked good for about 30 rounds then everything failed to extract. Took it out and the extractor and was chipped and was no longer grabbing the round. I put the original carrier back in place and it now wont cycle properly with .223. When I went to clean my AR15 I found the bolt carrier key was damaged because the 22 shells that failed to eject bent the gas tube so when the original bolt carrier was installed it hit the key and nicked it. When I got home I found the OEMs site for the conversion kit had all of the contact pages broken on their web site. They list the part as only $ 5.00 but show no instructions on how the unit disassembles to replace it. A search of the web shows numerous bad reviews on customer service and how they are so back ordered they don't answer emails or faxes. For the people it worked for congratulations but the chance of it breaking the firearm is not worth the price.
 Too Cool!!, 10/28/2007
Reviewer: Bob in Colorado
All the reviews looked good, thought I'd give it a try. Glad I did. 30 seconds to change, fires like a charm. Still lots of fun to shoot. Way cheaper. Nicer for my daughters to learn on. I still like to shoot .223, but this is a great alternative for casual plinking. Highly recommend it. Well designed and built.
 Best gun money ever spent!, 09/19/2007
Reviewer: Timmybung
I bought this conversion kit when I bought my new Bushmaster M4, and this is easily the best firearms accessory I've EVER bought. Given the price of .223 these days being able to shoot .22 is a huge bonus and a big part of the reason I bought the rifle. Using an AR-15 as a .22 plinker definitely makes it the most bad-ass (and fun) plinker around. If you're out for fun shooting like me and can't thousands of rounds of .223, buy one today. I also bought one 30rd. mag and it definitely wasn't enough- buy a few.
 MP-15 getting better results, 09/15/2007
Reviewer: Steven-Jeremiah
I wrote a review a while back about my new conversion kit, I must say it's getting better. I quit using the Remington ammo with a wax coating and started using Federal and I'm getting better results. I could have sent the kit back, but for the money if it keeps improving it will be well worth the trials. The other thing is that I only shot about 100 rds of 223 so the blue finish wasn't even smothed out yet on the moving parts. The gun is so fun to shoot in 22lr. I'll continue to give feed back on my conversion kit. Even if I don't ever get all the perfect shots like some of you have had it's still a awsome investment when you look at the price's of 223 ammo. Thanks John 3:16-17
 Get This, 09/13/2007
Reviewer: preifsny
I was thinking I wanted a dedicated .22LR upper, but I really wanted to use my current optics, as well as having the same weight and feel, etc, so I went with the conversion kit. I'm so glad I did. I see 1 or 2 horror stories posted here, and I feel for them, but I guess you can get a lemon with anything. Mine worked perfect right out of the box. I have had 1 stovepipe in 500 rounds of bulk Winchester ammo, and perfect performance with 1000 rounds of bulk Remington. That's around $35 of 22 ammo. 1500 rounds of .223 will run you $500 at least. I say, if you're on the fence about getting one of these, just go ahead and do it. Yea, the price has jumped up $30 recently, but don't wait till it goes up even more. You'll save the cost of the whole thing in one afternoon at the range. Get a few of the blackdogmachine 30 round mags as well. They are good quality for the money and you will definitly want at least a couple. The 'smoke' ones are dark enough to look 'cool' and still let you see what you've got left.
 right on, 08/20/2007
Reviewer: bob
purchased the ceiner 22 conversion for the s&w mp-15. have 600 rds through it and it has been flawless. clean and oil every 200rds. lets see?, 200 rds of 223 approx. $75.00 200 rds 22 LR approx.$5.00. not bad.oh, also purchased the 30 rd plastic mag. works fine also. bob
 S/W MP-15, 08/09/2007
Reviewer: Steven
I purchased the Smith & Wesson MP-15 I bought the conversion kit to save on ammo. The conversion kit is very accurate but my gun will not shoot two rounds without stove piping the spent case for which you have to remove the kit to get the shell out because it gets caught between the charging handle and the conersion assembly. I called tech services and they told me for some reason the kit doesn't work right on the MP-15 so it's not the kit it's the MP-15 I hope they get the problem solved because I love how it shoots just hate taking the gun apart after a shot or two. JOHN 3:16 Steven in Sun City
 Great, 07/31/2007
Reviewer: Dave
Definately a good investment. I have an RRA and this conversion works great. It particularly seems to like the cheap bulk packs of 22lr. Accuracy is pretty good and becomes down right respectable with 60gr Aquila Sniper Sub Sonics. Even with sustained rapid fire you are at no risk of harming your barrel as you are with 223. Your rifle will get dirty quickly however, so take an aerosal cleaner along if you plan on going through more than 1000 rounds. My cycling reliablity went up dramatically after smoothing the surfaces by disassembling the unit and tossing it in my brass tumbler, which I highly recommend.
 Best, 07/11/2007
Reviewer: B.Pro
I absolutely love this mod. It works great and hits accurate to at least 100 yards. It's great to go from paying 20 dollars for 20 .223 rounds to 10 bucks for 500 rounds of 22 lr.
 Kit works great, 05/10/2007
Reviewer: ar+1
Received my conversion kit and took it to the field. It was simple to install (no special tools). If you can semi-field strip your ar-15, you can install this kit in about 60 seconds. No exaduration! It fired without a jam and for close quarters training or just plinking - its a blast. Cheap to. My young daughters always want to fire my guns.... this is perfect for them to handle and build confidence with a full size weapon.
 I hope you have better luck, 04/29/2007
Reviewer: Robert Fister
I see that a lot of people have had success with this product. Unfortunately I have not (yet). I have found that my Ciener kit will not go completely into battery. The bolt face simply will not close once it is installed. It appears that it is getting caught up on the bolt catch. It's hard to see from the mag well you can easily feel it when you put your finger on the bolt catch release button and let it shut. Anyway, I'm trying to decide whether to return the thing or do some gunsmithing on it (which will certainly void any warranties and preclude me from being able to return it. Good luck with yours. Robert
 5 Bullets, 04/13/2007
Reviewer: TankW308
Great buy, as simple as you can get install, been working for months now with my Olympic Arms AR-15.
 Great Item, 04/09/2007
Reviewer: Jim Fla
Just recieved my kit on thursday ,great service. Went to the range Saturday with it. What a blast to shoot. Shot a brick of Winchester Super X copper washed High Vel and worked great ,not one fail to fire or jam!!! After I ran out of 22lr I switched back to .223 . Took about one minute . Then shot a twenty round box thru it. At the price that .223 is going for this is great . 3 cents per round VS .30 to .50 cents a round. Time to stock up on .22LR ammo!! I will be converting my 1911 pistol soon also and maybe my AK-47 . I also want to get a 30 round mag .
 Excellent!, 02/08/2007
Reviewer: Tom
I received this item today, went straight to the range with it, and fired 500 rounds (high velocity cartridges) through it without a single misfire, or misfeed. It is also surprisingly accurate! I highly recommend it!
 AWSOME!, 01/31/2007
Reviewer: Tom
Get one then get a bunch of 30rd mags. You will save lots of money on ammo. Your wife will love you more not spending money on .223.
 Great service & product, 01/30/2007
Reviewer: Reggie
First the service was great. I placed my order on Thursday and received it on Monday morning. If you own an AR15 you should have this kit. It fits and functions as claimed. I will shoot the .22 and save enough to pay for this kit in no time. Reggie
 Great for practice, 12/26/2006
Reviewer: n/a
This conversion is great. It is easy to change, cheap to use and you can shoot in indoor ranges. The only draw back is the accuracy and mags. The accuracy could be better but I haven't not spent much time on that. The mags should all be 30rd and cheaper, but those are the only draw backs. Great for plinking and fun target practice. I have a converison for my Glock, but that doesn't always work unless you have the right ammo. The AR-15 conversion, will jam a little bit with the wrong ammo, but not as sensitive as the glock. Good deal.
 Inexpensive AR-15 shooting, 11/28/2006
Reviewer: Edward
I didn’t think I would use this all that much but thought it would be nice to have so my rifle could shoot .223 and .22LR. Now I shoot the 22 LR more than anything. Since my wife and kids have started shooting the AR conversion is what they prefer. My boys will almost shoot a whole brick in one sitting and this conversion keeps working. I have never had a problem with it. I am saving so much on ammo. I am glad I purchased this.
AR-15 .22 LR Conversion Kit Includes 10 Round Magazine
Item #: ARR-059
Our Low Price: $249.97
Value: $374.96
Your Savings: $124.99 (33.33%)
 24 Customer Reviews
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