Joebob's is proud to offer the Kies center fire upper in 6.8 SPC 2.  Kies standard Mark 1 uppers have been designed to offer the perfect balance of ballistics, stiffness, weight, and maneuverability. Kies Firearms is confident that the Mark 1 uppers will serve even the most demanding hunters and marksmen.

These barrels have 4 groove rifling with a cone angle of 45 degress with a SPC2 chamber. They are M16 BCG's made of carpenter steel for the highest strength possible.

All Kies upper receivers are caliber marked to keep identification easy before heading out into the field only to find at your destination that you brought the wrong upper.
All Kies upper receivers are hand lapped true and squared. Kies uppers also come standard with the Kies Blast Master linear compensator.
Kies Firearms GUARANTEES that all center fire uppers will meet or exceed 1" MOA accuracy at 100 yards.

• MK I Barrel:
• -Caliber: 6.8 SPC 2
• -18 Inches
• -416 Stainless Steel
• -M4 feed ramps
• -Nano Ceramic bore coating
• -Diameter Under the Hand Guard: 1 inch.
• -Diameter at the gas block: 0.750 inch.
• -Diameter forward of the gas block: 0.730 inch.
• -Fluting: 12 deep flutes under the hand guard to loose weight while maintaining stiffness and increasing cooling capacity.
• - Threaded muzzle: 5/8x24
• -Muzzle device: Kies Blast master linear compensator
• -Gas block: Adjustable LoPro gas block.
• -Gas system: Mid Length
• -Hand guard: Hogue Mid-Length knurled aluminum free float tube
• -All barrels have a second thermal relief cut to aid in consistency when used in varying temperatures.
• -All barrels have an 11 Degree target crown.
• -Twist rate: 6.8 SPC, 1 in 11