CMMG Produces High Quality Parts and Accessories For Popular Firearm Models

CMMG is helping you upgrade your Mk9 platform firearm to a friendlier version which will accept ASC/C-Products Defense Magazines. This particular kit includes everything you need to help create reliable fit and function of the specified magazines. Please see the manufacturer note below for additional information about barrel compatibility.

CMMG Mk9 Parts Kit Specifications and Features:

• CMMG 91AFF43
• Mk9 Parts Kit
• Natural Finish

Includes:

• Carbine Buffer Spring
• Carbine Buffer
• MK9 Magazine Release
• MK9 Bolt Catch
• ASC/CPD Magazine Optimized Feed Ramp

Note:
CMMG has made a small modification to 9mm barrels in order for them to be compatible with Mk9 lower receivers. 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.