CMMG .22LR Conversion Kit for ARs on SALE at CDNN
A reliable 22LR conversion kit for an AR-platform rifle lets you train with inexpensive ammo. That’s a big advantage for 3-gun competitors who must engage multiple targets rapidly, often at relatively short distances. Multi-gun competition is a speed game, requiring plenty of practice to “run with the big dogs”. It’s not unusual for elite 3-gun shooters to put hundreds of rifle rounds down range every week. Service Rifle shooters can also benefit from cross-training with an AR equipped to shoot .22LR rimfire rounds. With a good .22LR conversion kit, Service Rifle shooters can practice their positions and gun-handling at minimal expense. In the winter, if you have a .22LR conversion for your AR, you can train at the many indoor ranges that allow rimfire rifles, but not centerfire rifles.
Complete Conversion Kit for $189.99 from CDNN
CDNN Investments in Texas is offering a good deal on the CMMG .22lr Stainless Conversion Kit for AR15-type rifles. This includes a stainless bolt and bolt carrier assembly and two (2) 25-round magazines or two (2) 10-round mags. The CMMG Kit uses your existing fire control (trigger) group and requires no internal gunsmithing. Just drop it in and shoot. While supplies last, the CMMG Conversion Kit with magazine(s) is priced at $189.99. NOTE: CDNN is offering 2 mags with this package as a “limited time offer”. (MidwayUSA also has this Kit, with one mag, for $199.99.)
CMMG .22LR Kit Is Reliable and Affordable
The CMMG conversion is widely used and has proved quite reliable, both with the 10-round and 25-round magazines. It is recommended by Brownells, though some Brownells customers have said the kits required some minor fitting or polishing. (This may be more of an issue with “off-brand” uppers — Colt AR owners reported no issues.) In the video below you see an AR15 being fired with the CMMG .22LR conversion in place. Then the CMMG bolt is exchanged for the original .223 Rem bolt assembly and the gun is shot in centerfire mode.
In the second video below you’ll see the CMMG conversion shot with two full (or nearly full) 25-round magazines, in rapid fire. There are no malfunctions.
So how does using a rimfire adapter affect a service rifle’s throat? Are these things designed to avoid problems with crud (mostly carbon) building up in the throat area that then would negatively affect case extraction once warmer weather allows a return to regular center-fire ammunition?
I’d not want to spend $200 on a conversion kit only to learn after a winter’s use that my SR upper needs serious work before the HP season begins.
Not saying this is not a “good”conversion, maybe it is, but similar ones I’ve tried left everything to be desired. “Accuracy” was in the area of gallon milk jug at 50 yards, and feed and ejection malfunctions were too numerous to count. AR-15’s have a .224″ bore diameter, for jacketed bullets, and the soft lead 22RF bullet is .222″ in dia., so I see that as an accuracy problem. In addition to that, all 22 RF bores that I know of have a 1-16 twist for the 40 gr bullet. I’ve never known an AR-15 to have a 16 twist. The possibility of lead shavings at least partially plugging up the gas port hole in the bore also has to be a consideration. Anyone really serious about their AR-15 will consider one of the dedicated 22 RF uppers.