CMMG AR-15 .22 LR Stainless Steel Conversion Kit + Three 10 Round Magazines – Bravo Series


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CMMG .22LR Conversion Magazine - 10 Round Capacity

CMMG ARC-22 Magazine 10 Round .22 LR Magazine


Birchwood Casey Shoot-N-C Target - Round Bullseye - 12" - 5 Targets

Birchwood Casey Shoot-N-C Targets - 5 Pack with 12" Round Bullseye


This kit is great for states that place a limit on magazine capacity.

Spend a day at the range without spending a fortune!

The CMMG Stainless Steel 22LR Conversion Kit with 3 ten round Magazines.

This CMMG .22LR conversion kit allows the use of inexpensive .22LR caliber rim-fire ammo in your AR15. You can install this in 30 seconds, but just removing the standard bolt/carrier group from your AR and replacing with the the included .22 bolt device.

This unit is blow-back operated and allows semi-automatic firing.

Use with AR’s chambered in 5.56/.223 only. Compatible with piston-systems.

– CMMG .22LR bolt carrier group assembly (stainless steel for superior durability)
– Three 10-Round .22LR Magazines (fits in AR mag well)

Here’s a video that shows how easy this drop-in kit is to maintain!

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

CMMG Warranty

Seller warrants to Buyer that for a period of 6 months from the Delivery Date, all Goods will be:

  • Free from any defects in workmanship, material, and design
  • Conform to applicable specifications[, drawings, designs, samples and other requirements specified by Buyer]
  • Fit for their intended purpose and operate as intended
  • Merchantable
  • Free and clear of all liens, security interests or other encumbrances
  • Not infringe or misappropriate any third party’s patent or other intellectual property rights.

Inspection and Rejection of Nonconforming Goods

The Buyer has the right to inspect the Goods for a period of thirty (30) days after the Delivery Date. Buyer, at its sole option, may inspect all or a sample of the Goods and may reject all or any portion of the Goods if it determines the Goods are non-conforming or defective.

If Buyer rejects any portion of the Goods, Buyer has the right, effective upon written notice to Seller, to:

  • Rescind the Order in its entirety
  • Accept the Goods at a reasonably reduced price
  • Reject the Goods and require replacement of the rejected Goods.


If Buyer requires replacement of the Goods, Seller shall, at its expense, promptly/within 30 days replace the nonconforming Goods and pay for all related expenses, including, but not limited to, transportation charges for the return of the defective goods and the delivery of replacement Goods.

If Seller fails to timely deliver replacement Goods, Buyer may replace them with goods from a third party and charge Seller the cost thereof and terminate this Order for cause pursuant to Section 20.

Any inspection or other action by Buyer under this Section shall not reduce or otherwise affect Seller’s obligations under the Order, and Buyer shall have the right to conduct further inspections after Seller has carried out its remedial actions.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 18 reviews
Todd D.
CMMG AR-15 .22 LR Stainless Steel Conversion Kit (CA compliant 10 Rnd. Mags)

The kit works well. It does, however, get pretty carbon covered with the 22LR ammo, but that really didn't have too much effect on performance. The one thing I don't like is the style of magazine they now provide. The old ones (that are pictured) have a wider surface on the ends, so you can add a shim to take up the slack in the mag well. The newer ones have a narrow rib on the end that you could shim before, but not now.

Scott Lariosa
Good stuff

Product came quickly and was as advertised... hoping to do business again soon.

Thank you for taking the time to leave a review! We are happy to hear that you are satisfied with your purchase and that it arrived promptly. We look forward to serving you again in the future. Happy shooting!

Robert Regallie
Not Sure Yet

I Have the Ruger AR15 556/223 model 8514 upon initial installation the CMMG conversion would not seat completely into bolt guide. I have been in contact with CMMG support they are sending me a replacement chamber adapter. i hope it fixes the issue i will try to update when part arrives

Scott Svitak
Works great! Shoots cheap!!

Easy install, shoots great..
Need a persuader to remove as it seats in well.

Great review! The kit works great and the magazines are also great quality. I would recommend this kit to anyone.

M Martens
.22 LR conversion kit

What a great way to teach the AR platform to beginners without the recoil and expense of .223/5.56 ammo. Highly recommend this adaptor to all levels of shooters!

Thanks for the review! We're glad you're enjoying the kit!