The Spiritus Systems Micro Fight Chassis Mk4 is a modular chest rig platform designed to carry magazines and mission-essential equipment in a compact, scalable setup.

• Modular Platform: Compatible with rifle, pistol, and sub-gun magazine inserts
• Expanded Hook Field: Integrates with plate carriers and accessories
• Stand-Alone or Placard: Functions independently or mounted to armor

Features

The Micro Fight Mk4 features soft loop fields inside both pockets, allowing you to position mission-essential items exactly where you want them. The improved internal profile supports 5.56x45 and 7.62x51 magazine inserts, sub-gun inserts, or combinations of rifle and single or double pistol magazine inserts.

A 5” x 9” hook field on the rear provides solid integration with accessories such as Sub Abdominal Pouches, Expander Wings, and other hook-backed components. The enlarged hook area also allows secure mounting to plate carriers like the LV-119.

The Mk4 supports sub-load tourniquet integration via two integrated grommets when used with the Universal Retention Kit. The platform remains compact and lightweight while allowing carriage of rifle and pistol magazines, 37/40mm grenades, flashbangs, medical supplies, breaching tools, and other mission-specific equipment.

Designed as a true stand-alone chest rig, the Micro Fight can be configured for low-visibility use under clothing or scaled up for full kit integration. It also converts easily into a placard configuration by removing the 1-inch side release buckles and attaching directly to a plate carrier via the rear hook field.