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.
Uppers: – Billet 7075-T6 Aluminum
Lowers: – Billet 7075-T6 Aluminum
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)
Virtual Patent Information can be found here.