.338 Spectre
Subsonic .338 cartridge on a necked-up .223 case for AR-15s.
Barrels
Rifled tubes that guide the projectile
Bolt Carrier Groups
The heart of the AR action
No bolt carrier groups available in .338 Spectre yet.
Magazines
Feed devices for ammunition
No magazines available in .338 Spectre yet.
Muzzle Devices
Flash hiders, brakes, and compensators
No muzzle devices available in .338 Spectre yet.
Ammunition
Cartridges chambered in this caliber
No ammunition available in .338 Spectre yet.