CMMG AR-15 .22 LR Conversion Kit w/ Charging Handle & Forward Assist + One 25 Round Magazine – Echo Series

SKU: 22BA64E

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Spend a day at the range without spending a fortune!

The CMMG Echo Stainless 22LR Conversion Kit with 1 Magazine, Charging Handle, and Forward Assist Adapter

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 is the premium “Echo” kit, which includes a charging handle and a forward assist adapter. The unit is blow-back operated and allows semi-automatic firing.

The CMMG .22LR magazines have a bolt hold-open follower

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

– CMMG .22LR bolt carrier group assembly (stainless steel)
– One 25-Round .22LR Magazine (fits in AR mag well)
– Charging handle and forward assist adapter (allows use of AR forward assist button)

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 8 reviews
CMMG .22lr Conversion

At first I was reluctant to order something like this because I could not imagine a kit that would make a rifle go from a 556 to a .22lr. I am glad I did, it worked flawless. Shot 500 rounds with no trouble. Great addition to my AR. Now, will someone make a conversion kit that will shoot .177?

We are glad to hear you are pleased with your order.

Robert Jones
CMMG .22lr Echo Conversion

Got this product last week. Put a few hundred .22lt rounds down range, with different brands of ammo, with NO malfunctions. Taking it out again tomorrow for another round.

The company was easy to work with. Ordered it on a Friday night, sent the company an email on Saturday, and they responded back to me on Sunday, with a tracking number. I only have good things to say about this company. I will order from them again.

Vince L.
.22 converter

Quality product. Very happy with service, shipping and all around experience.

Victor W.
CMMG AR-15 .22LR Conversion Kit w/ Phosphate finish + One 25 Round Magazine - 22BA6FD

An excellent little unit. Very satisfied with it's performance in my Colt AR-15 A2 Gov't Service. Fired a few Aguila 60 grn rounds through it too, but they did not all have the moxy to cycle the bolt. Didn't want to run too many through the bore as they are not the recommended copper lubed bullet (although accuracy was very good). This unit DID chew up the hammer in my NEW FRONTIER polymer lower, however; yes, they do sell a narrow one that functions perfectly in this conversion.

David B.
CMMG AR-15 .22LR Converaion

Went out and shot my AR with my new .22 Conversion Kit. Worked flawlessly!! Had a great time shooting without spending a ton of money. I highly recommend this product.