Olympic Arms AR-15 A3 Upper Receiver Assembly 243 Winchester Super Short Magnum (WSSM) 24" Barrel
- Upper Receiver Type: A3 Flat-Top
- Barrel Length: 24" Bull
- Barrel Contour: Not listed by manufacturer
- Barrel Material: Stainless Steel
- Muzzle Thread Pattern: N/A-Crowned
- Chrome Lined: No
- Barrel Finish: Black Matte
- Twist Rate: 1 in 10"
- Chamber: 243 Winchester Super Short Magnum
- M4 Feed Ramps: Not listed by manufacturer
- Muzzle Device: N/A-Crowned
- Gas System Length: Rifle
- Gas Block Diameter: Not listed by manufacturer
- Handguard: Aluminum Free Float
- Sights: None-Includes Gas Block with Picatinny Rail
- Bolt Carrier Assembly Included: Yes
- Bolt Carrier Type: N/A
Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
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