Alexander Arms AR-15 Overwatch A3 Upper Receiver Assembly 6.5 Grendel 24" Barrel

Product #: 115064 Alexander Arms #: U-OVW24GRE
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Product Information

This Alexander Arms Overwatch AR-15 Upper Receiver Assembly comes complete and ready to fire upon installation onto any standard, small pin lower receiver. The Overwatch is chambered for the high performance 6.5 Grendel cartridge, offering shooters an excellent alternative to the traditional 223 Rem/5.56 NATO round that boasts more power, greater ballistic efficiency, increased effective range and enhanced accuracy potential. To maximize the 6.5 Grendel's effectiveness, this upper features a 24" stainless steel barrel and a rifle length, free floating composite handguard with dual forward sling swivel studs. The A3 flat-top Overwatch comes complete with a low profile gas block, bolt carrier group, charging handle, forward assist, ejection port door, shell deflector, and one 10-round magazine.

Technical Information
  • Upper Receiver: A3 Flat-Top
  • Barrel Length: 24"
  • Barrel Contour: Medium
  • Barrel Material: 416R Stainless Steel
  • Muzzle Thread Pattern: 9/16"-24 RH
  • Chrome Lined: No
  • Barrel Finish: Spray-On Black
  • Twist Rate: 1 in 9"
  • Chamber: 6.5 Grendel
  • M4 Feed Ramps: Yes
  • Muzzle Device: A2 Flash Hider
  • Gas Block Diameter: 0.750"
  • Gas System Length: Rifle
  • Handguard: 1-Piece Composite, Free Float
  • Sights: None
  • Bolt Carrier Assembly Included: Yes
  • Bolt Carrier Type: 6.5 Grendel Compatible Carrier
  • Extras: Low Profile Gas Block, 10-Rnd Magazine
  • Weight: Approx. 6.1 lbs

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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