308 Bolt Carrier Group
9310 steel Phosphated bolt
8620 steel Carrier
Phosphated outside and chrome lined inside
Staked Gas key
The AR10 platform does not enjoy a common design between manufacturers, like the AR15. As a result, there can and will be subtle differences in the parts kits of various manufacturers. Some parts, like the fire control group, are shared with the AR15 platform to preserve the options for upgrading.