.338 Federal
.308 case necked up to .338; AR-10 hunting barrels.
Barrels
Rifled tubes that guide the projectile
Bolt Carrier Groups
The heart of the AR action
No bolt carrier groups available in .338 Federal yet.
Magazines
Feed devices for ammunition
No magazines available in .338 Federal yet.
Muzzle Devices
Flash hiders, brakes, and compensators
No muzzle devices available in .338 Federal yet.
Ammunition
Cartridges chambered in this caliber
No ammunition available in .338 Federal yet.