Description

Built Different. Ready to Perform.

by Heretic Custom Arms

Bring Heretic performance to your next build.

Heretic Custom Arms Complete Upper Receivers are built with the same attention to detail, premium components, and uncompromising standards that define our complete firearms. Every upper is carefully assembled around a purpose-built combination of barrel, handguard, gas system, and components designed to work together as a complete package.

Whether you’re starting a new build, upgrading an existing rifle, or adding another caliber to your collection, a Heretic Complete Upper gives you a straightforward way to experience the precision and craftsmanship behind Heretic Custom Arms.

Precision Built. Purpose Driven.

Description:

• Barrel: 16″ match-grade barrel selected for accuracy and consistency
• Handguard: 15″ Free-float M-LOK® handguards
• Muzzle Device: MIL-SPEC A2 Compensator
• Bolt Carrier Group: Carpenter 158 Steel with Black Nitride Finish
• Charging Handle: 7075T6 Extended Charging Handle
• Calibers: 5.56 NATO, 6 ARC, 6.5 Grendel
• Premium Cerakote finish: Graphite Black, FDE, OD Green, Sniper Grey
• (1) Pair of Low-profile M-LOK® Rail Covers
• (1) 8-Slot M-LOK® Picatinny Rail
• (1) M-LOK® QD Sling Mount
• Properly assembled and inspected components
• Built for dependable, repeatable performance
• Designed and assembled by Heretic Custom Arms

YOUR LOWER. OUR UPPER. HERETIC PERFORMANCE.

Skip the parts hunt and get a complete upper built with intention from the start. From component selection to final fit and finish, every Heretic complete upper set reflects our philosophy:

Precision. Craftsmanship. No Ordinary Builds.