GWOT DOC Complete Upper Receiver 5.56


The Upper receiver from the GWOT DOC boasts the MD Enhanced Bolt Carrier Group and Radian Charging handle for unparalleled performance. Exceptional craftsmanship ensures optimal reliability. Elevate your shooting experience with this cutting-edge ensemble.

1 in stock (can be backordered)

Category: SKU: 40005


GWOT DOC Upper Receiver

  • The billeted upper receiver is a testament to precision engineering, meticulously crafted to exacting tolerances that define its superior performance. Its design features a flawlessly flat barrel face, ensuring a perfect alignment of the barrel with the upper, elevating accuracy to new heights. The reduced barrel seat size necessitates thermal fitting, creating a snug fit that enhances precision and promotes increased repeatable accuracy.
  • The E Series Cerakote, layered atop type 3 anodizing, not only bestows a sleek appearance but also serves a functional purpose. This coating significantly diminishes wear on components and fortifies the rifle against corrosion, guaranteeing extended longevity.


  • The Thermal Fit between the barrel and upper forges an unyielding connection, anchoring the barrel securely in place. This not only bolsters accuracy but also mitigates wear on the bolt, ensuring sustained reliability over time.
  • At the heart of the firearm lies a precision barrel forged from 416R stainless steel, culminating in a QPQ nitride finish. This unique combination not only shields the barrel from external elements but also preserves the unrivaled accuracy inherent in stainless steel. The promise of sub MOA accuracy is further underscored, with the potential for 1/2 MOA in the hands of a skilled shooter.
  • The mid-length gas system expertly diminishes felt recoil and muzzle rise, maintaining optimal reliability for an exceptional shooting experience with every round fired.


  • MD marked Radian ambi charging handle.
  • MD enhanced Bolt carrier group, ArmorLube-coated, ensures peak performance round after round, unmatched reliability.
  • The 15-inch handguard, featuring Mlok at 3, 6, 9, and 45-degree intervals, offers ample space for accessories. Anti-rotational tabs and a patented retention system ensure the handguard remains steadfast, even under rigorous usage.
  • The A2 Birdcage muzzle device rounds out this impressive package, making the GWOT Doc upper receiver the pinnacle of precision and reliability in the world of firearms.

Additional information

Weight 4 lbs
Dimensions 15 × 5 × 5 in

E series Cerakote on top of Type 3 Hardcoat Anodized


16 inch, 416R Stainless Steel, QPQ coated 1:8 twist


MD Thermal fit billet upper


15 in with Mlok at 3,6,9 as well as the 45s, anti rotational tabs, Patented retention system.

Charging Handle

MD Marked Radian Raptor Ambi

Gas system

Mid Length

Gas block

Non Adjustable, Pinned


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