Yankee Hill AR-15 Lightweight Rifle Upper Assembly 5.56x45mm NATO 1 in 7" Twist 20" Fluted Barrel Chrome Lined with Quad Rail Free Float Handguard, Mini Scope Riser Mounts

Product #: 180859 Yankee Hill #: YHM-7700-L 1/7" UPC #: 816701010633
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  • Information

The Yankee Hill AR-15 Lightweight Upper Assembly is a drop-in part that will attach to virtually any standard AR-15 lower assembly. Comes complete with charging handle, Mil Spec bolt and bolt carrier assembly, it is ready to pin to a complete lower assembly with no modification.  Barrels feature Yankee Hill's Diamond fluting which reduces weight and increases cooling.  Uppers come complete with Yankee Hill Lightweight free float 4-rail handguards which increase versatility and accuracy without adding too much weight.



  • Upper Receiver Type: Forged 7075-T6 Aluminum A3 Flat-Top
  • Barrel Length: 20"
  • Barrel Contour: Medium, Diamond Fluted
  • Barrel Material: 4140 Chrome Moly Steel
  • Muzzle Thread Pattern: N/A
  • Chrome Lined: Yes
  • Barrel Finish: Parkerized
  • Twist Rate: 1 in 7"
  • Chamber: 5.56x45mm NATO
  • M4 Feed Ramps: Yes
  • Muzzle Device: N/A
  • Gas System Length: Rifle
  • Gas Block Diameter: 0.750"
  • Handguard: 12.5" Free Float Lightweight Quad Rail
  • Sights: N/A
  • Extras: 2 Yankee Hill Mini Scope Risers
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