CMMG Parts Kit Mk9 9mm Radial Delayed Blowback Colt/Metalform Mags

Name: CMMG Parts Kit Mk9 9mm Radial Delayed Blowback Colt/Metalform Mags
Brand: CMMG

CMMG · Lower Parts

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Best price

$79.95at CMMG

checked Nov 10, 2026

Buy at CMMG

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Where to buy

Store	Price	Availability	Buy	Add to build
CMMG Best price	$79.95checked Nov 10, 2026	Check store	Buy at CMMG
OpticsPlanet	$81.99Salechecked Nov 10, 2026	Out of stock	Buy at OpticsPlanet

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Oct 23, 2026.

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Store	Latest	Lowest	Highest
CMMG	$79.95	$79.95	$79.95
OpticsPlanet	$81.99	$81.99	$81.99

Since Oct 23, 2026.

About this part

The CMMG Parts Kit Mk9 9mm Radial Delayed Blowback Colt/Metalform Mags is an AR-9 lower part from CMMG. It's sold by 2 stores, from $79.95 to $81.99.

Specifications

Manufacturer: CMMG
Type: Kit
Platform: AR-9

From the manufacturer

CMMG Parts Kit Mk9 9mm Radial Delayed Blowback Colt/Metalform Mags. This modification only applies to Mk9 platform lower receivers and does not positively or negatively affect functionality of the barrel with a MkGs Mk4 or Mk17 platform lower receiver. Barrels that are stamped 9mm Luger will be compatible with an upgraded Mk9 lower receiver. If your barrel is marked 9x19 NATO you will need to purchase a new 9mm barrel in order to ensure reliable function. Specifications for CMMG Mk9 9mm Parts Kit: Manufacturer: CMMG Color: Black Finish: No Caliber: 9mm Luger Gun Make: CMMG Gun Model: CMMG Mk9 Condition: New Gas System Length: Carbine Length Flutes: No Package Contents: CMMG Mk9 9mm Parts Kit CMMG 91AFF52: Parts Kit Mk9 9mm Radial Delayed Blowback Colt/Metalform Mags