CMMG 9 AR Magazine Conversion 9mm Luger – 30 Round

SKU: 94AFC43

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Converts Your Magazine to Shoot 9mm Ammunition

The CMMG 9 AR Magazine Conversion 9mm is a modified Magpul PMAG that fits perfectly into your AR15 mag-well and converts your magazine into 9mm caliber ammunition. It comes from the factory already installed Magpul PMAG for use in your standard AR lower with a CMMG 9mm upper receiver.

This conversion magazine makes it possible to shoot 9mm ammunition from your unmodified AR15 lower receiver when paired with a CMMG 9mm Radial Delayed Blowback upper.

Holds 30 Rounds of 9mm Ammunition

The CMMG 9 AR Magazine Conversion Kit holds 30 rounds of 9mm ammunition and features a last round bolt hold open for added functionality. It’s made compatible with standard carbine buffers and recoil springs, so you can easily build a 9mm PCC.

Its unique design allows it to feed any CMMG 9mm Radial Delayed Blowback upper receiver while keeping it small enough to stow away in a pocket of your jeans or backpack,


  • Magpul PMAG with 9ARC 9mm internals
  • Holds 30 rounds of 9mm ammo
  • Last round bolt hold open functionality
  • Compatible with standard carbine spring and buffer


  • Caliber: 9mm Luger
  • Capacity: 30 rounds
  • Finish: Black
  • Model: 9 AR Conversion Mag
  • Material: Metal
  • Model Fit: AR-15
  • Max Capacity: 30 rounds

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 4 reviews

unfortunately i messed up on my lack of knowledge and bought wrong part for gun but it looks solid and well constructed even though i cant use it I would still give a thumbs up

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Bryan Keeton
Not the right item for me.

Even though I received the magazines a bit ago, I just received my AR9 upper today and the magazines did not function with my BCG. I have asked for a refund.

Gun George
Fantastic all around!

CMMG 9mm conversion magazine for AR style lower / CMMG MK4 Lower (standard 30 round Pmag size). This magazine is literally a Magpul Pmag 30 round 5.56 magazine with different internals of 9mm CMMG uppers.

Price is the best online, shipping is cheap and fast. I ordered more. Perfect!

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Works Like a Champ

Ordered for my Banshee 100, Mk4, in 9mm. They fed without a problem at the range. Just what I wanted.

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