The Cosaint Arms HAVOC COS21

$4,199.99

The Cosaint Arms HAVOC COS21 is a premium, hand-fitted double-stack pistol engineered to dominate duty, competition, and elite concealed carry. Available in 3.5”, 4.25”, and 5” configurations, the HAVOC line features a Tri-Top stainless steel slide riding on a robust tactical steel full-dust-cover frame with an integrated accessory rail. Equipped with Cosaint’s exclusive SV-porting (ranging from SV6 to SV12) for virtually flat-shooting recoil control, a lightweight CNC-machined aluminum grip, and high-tier EGW fire controls, the HAVOC COS21 comes optics-ready via a C&H Precision plate system to deliver relentless accuracy and speed.

CA WARNING (Prop 65) & Compliance Information
Please read before purchasing.

Description

Hand-Fitted Innovation from Cosaint Arms

The Cosaint Arms HAVOC COS21 represents the pinnacle of the brand’s modular double-stack (2011-style) engineering. Built on a foundation of absolute reliability and match-grade accuracy, each HAVOC pistol is hand-fitted and meticulously tuned in the USA to exacting tolerances. Combining a Tri-Top stainless steel slide with a tactical steel frame featuring a full-length dust cover and an integrated Picatinny rail, the HAVOC delivers the perfect balance of structural rigidity, muzzle weight, and cycling speed.

Flatten the Chaos: Exclusive SV Porting

What separates the HAVOC from standard double-stacks is its proprietary barrel and slide ventilation system. Depending on your choice of frame size, the HAVOC is armed with exclusive SV-Porting (SV6 on the 3.5” Compact, SV8 on the 4.25” Commander, and SV12 on the 5.0” Government). By bleeding off high-pressure gases vertically through the matched bull barrel and slide ports, muzzle flip is practically neutralized. The gun tracks smoothly and linearly, keeping your sights flat and significantly shrinking your split times during rapid strings of fire.

Elite Ergonomics & Optics Ready

The HAVOC trades traditional polymer for a custom-contoured, lightweight Cosaint Arms Aluminum Grip Module and flared magwell. This design offers high-retention control and rock-solid durability without adding unnecessary bulk to your carry setup. Driven by premium EGW fire controls, an Atlas/Dawson medium flat trigger, and an ambidextrous safety, the trigger breaks clean and crisp at an approximate 3.0 to 3.5 lbs with a near-instantaneous tactile reset. Out of the box, the slide comes precision-prepped for C&H Precision Crosscut mounting plates, allowing you to seamlessly adapt your favorite red dot optic.

Key Specifications:

  • Caliber Configurations: 9mm Luger (Also available in .40 S&W, 10mm, and .45 ACP)

  • Available Sizes: 3.5” Compact (SV6 Ported), 4.25” Commander (SV8 Ported), 5.0” Government (SV12 Ported)

  • Frame: Tactical Steel Frame with Full-Length Dust Cover & Light Rail

  • Slide: Stainless Steel Tri-Top Slide

  • Barrel: Match-Grade Crowned DLC Bull Barrel (Ported)

  • Grip Module: CNC-Machined Cosaint Aluminum Grip & Flared Magwell

  • Fire Controls: Premium EGW Components with Flat Trigger (3.0 – 3.5 lb pull)

  • Optics System: Optic-Ready Slide Prep (Optimized for C&H Precision Plates)

  • Safeties: Ambidextrous Thumb Safety & Pinned Grip Safety

  • Magazine Compatibility: Ships with High-Capacity MBX / 2011-Style Magazines

Brand

Cosaint Arms

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

Must be 21 or older to purchase.
WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

Must be 21 or older to purchase.
WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).