Olympic Arms AR-15 A3 Upper Receiver Assembly 243 Winchester Super Short Magnum (WSSM)

Product #: 398382 Olympic Arms #: K8-MAG-UR-243
$872.99
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Product Information

This flattop A3 upper receiver comes complete with charging handle, bolt carrier assembly, aluminum tubular free-float handguard, Picatinny-style rail gas block and target crowned muzzle. The 24" button rifled Ultramatch barrel is chambered for 243 WSSM with a 1 in 10" rate of twist. WSSM uppers do not come with a brass deflector or ejection port cover. Ready for installation onto any standard AR-15 lower receiver. Includes one 4 round magazine. Lifetime factory warranty.

Technical Information
  • 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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