CMMG .22 Conversion Kit – AR15

CMMG .22 Conversion Kit – AR15

CMMG .22 Conversion Kit – AR15


The first thing I thought after assembling my first AR15 from parts was, how can I shoot this all the time? ¬†I mean, I can make it rain, but I’m on a budget, foo’. ¬†Hookers ain’t cheap.

After some research I zeroed in on the CMMG .22 LR conversion kit. ¬†I paid about $179 for the black phosphate bolt and one 25 round magazine. ¬†Now see, this isn’t just a conversion kit, this is a shoot-a-gun-that-you-assembled-with-your-bare-hands-as-often-as-you-want-don’t-be-an-ammo-scrooge-when-your-kids-and-friends-want-to-shoot-your-AR-even-your-wife-will-have-fun-shooting-this kit, and boy did it fulfill all of that.

For all intents and purposes, this is a plinking device. ¬†While the accuracy is pretty good it isn’t 100% and you notice some interesting grouping deviations. ¬†The bolt drops in very quickly. ¬†Remove the rear pin, release the charging handle, pull out the BCG, drop in the new bolt, close charging handle and replace pin. ¬†Insert the specialized magazine and you are set.

A couple of things I don’t love is that the bolt doesn’t lock back further than a half inch. ¬†Makes the ROs a bit nervous during cease-fire as they always give it a second look. ¬†The specialized magazines claim to hold 25 rounds, but I have three or four, and they hold 22 rounds, no more. ¬†Fitting perhaps, but irritating. ¬†Speaking of the magazines, they are sharp, but only on the parts you actually have to touch. ¬†My next purchase was a speed loader, which is better but you still look like you’ve been hand feeding piranha after a day at the range.

Bottom line, I am happy with the purchase. ¬†It made me love my AR15 even more than I already did. ¬†My wife loves to shoot the .22 LR out of it and I can always plink several hundred rounds without my wallet pressing charges. ¬†I’m certain I’ve saved at least the purchase price of the kit in ammo costs in the nine months that I have had it.

(I use mine in a Spikes upper and it fits flawlessly, same with the magazines.)

About The Author

Shawn Herrin

As a certified NRA instructor, fervent shooter and IPSC competitor, safe, responsible, ethical and legal gun use are my passions. Whether handloading, practicing, studying or reviewing items, I am constantly focused on guns and shooting. Staunch supporter of the Bill of Rights and very proud American.


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