CMMG Mk3 Platform Specifications


CMMG Mk3 uppers typically compatible with lowers using LR308/SR25 pattern magazines.

Not compatible with lowers using FAL magazines.

Compatible with most DPMS Gen1 LR308 parts and accessories.

Receiver Materials: 

Uppers: – Billet 7075-T6 Aluminum

Lowers: – Billet 7075-T6 Aluminum

Buffer Weight(s):

Rifle (A1) – 5.4oz

Carbine – 3.9oz

Bolt Carrier Group Materials:

Bolt – Steel, 9310

Carrier – Steel, 8620

Extractor – Steel, S-7

Ejector – Steel, S-7

Currently available in the following calibers:

.308 Winchester (7.62x51mm NATO)

6.5 Creedmoor

Virtual Patent Information can be found here.