CMMG AR-9 Complete 9mm Bolt Assembly for GLOCK or Colt Magazines

Manufactured by CMMG
SKU: 90BA46A
MPN: 90BA46A
Manufactured by CMMG
(0) No Reviews yet
$199.99 $224.95

In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

Standard orders received before 4:00pm CST will ship out the same day. FFL orders will ship within 3 business days as long as we have the information for the transfer destination.



9mm AR-15’s are some of the most fun guns to shoot at the range and building your own is even more fun. However, choosing the right components is extremely important if you don’t want to have reliability issues. The CMMG 9mm bolt assembly is designed with reliability in mind and will work in a variety of 9mm upper receivers including the CMMG MK9 PDW. The main feature of this heavy-duty bolt is the compatibility with Glock and Colt 9mm magazines. A small cut along the bottom of the bolt carrier group allows you to reliably use either style of magazine. This bolt is made from 8620 tool steel and is a single piece design due to the straight blow back operation. The gas key is used as a charging handle interface and the extractor is a proprietary design. There is no ejector because 9mm AR-15 designs utilize an external ejector located in the lower receiver. If you are building a 9mm AR, this complete bolt assembly will ensure you have a reliably functioning rifle that is compatible with the most popular magazines.

  • Compatible with Colt and GLOCK magazines
  • Complete 9mm bolt assembly constructed from 8620 tool steel
  • Designed for use in CMMG MK9 or other 9mm lower receivers
  • Optimized for 9mm blowback systems
  • Properly staked “gas key” (Interfaces with charging handle)
  • Not compatible with CMMG Guard or Banshee

This bolt assembly is ramped correctly underneath to allow it to function properly with both notched 9mm spec and standard AR-15 spec hammers. No special hammer needed. This bolt is not compatible with the CMMG Guard or Banshee models.

A leading manufacturer of AR-15 rifles, kits, and accessories, CMMG Inc. was established in 2002. Constantly pushing the edge, CMMG strives to develop and improve bringing you a product lineup that is second to none.
See More


Caliber Gauge9mm Luger
Carrier FinishManganese Phosphate
Carrier StylePistol Caliber Blow Back Carrier

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

No reviews available

Be the first to Write a Review