The Spikes Tactical Midlength Complete Upper (brand part no. STU5035CQ2F) is a 16-inch, 5.56x45mm NATO upper built and inspected to function right out of the box, giving AR-15 builders a drop-in upper instead of a pile of parts to match and assemble. Spikes forges the upper receiver from 7075-T6 aluminum, adding toughness to the build without the extra weight of steel, and the barrel is finished in black phosphate with a 1:7 twist rate tuned for a wide range of 5.56 bullet weights. This LE Midlength configuration ships with a phosphate-coated bolt carrier group that resists corrosion for years of service, a 12-inch Picatinny handguard for mounting optics and accessories, and an A2 flash hider at the muzzle. Everything needed to complete the upper build is included, making this a strong choice for AR-15 owners who want serious function and reliability without individually sourcing and matching each upper component.

Key Specifications

• Chambered in 5.56x45mm NATO.
• Barrel measures 16 inches with a midlength gas system.
• Rifling uses a 1:7 twist rate.
• Barrel finished in black phosphate.
• Upper receiver forged from 7075-T6 aluminum.
• Includes a phosphate-coated bolt carrier group for corrosion resistance.
• Fitted with a 12-inch Picatinny handguard.
• Finished at the muzzle with an A2 flash hider.
• Built as part of Spikes Tactical’s LE Midlength product line.

Frequently Asked Questions

Does this upper come with a bolt carrier group? Yes, it ships as a complete, drop-in upper with a phosphate-coated bolt carrier group included.

What gas system does this upper run? It uses a midlength gas system paired with the 16-inch barrel.

Is this upper ready to install out of the box? Yes, Spikes Tactical inspects each complete upper to function right out of the box.

Buy the Spikes Tactical Midlength Complete Upper, 5.56 NATO, 16-inch, 12-inch Picatinny Handguard

Drop a fully built, inspected upper onto your next AR-15 build. Order it through our Spikes Tactical lineup of AR15 uppers from our Lubbock, Texas gun shop.