Spiritus Systems Micro Fight Chassis Mk4


Wolf Grey
Coyote Brown
Ranger Green
Swatch image Multicam
Swatch image Multicam Arid
Swatch image Multicam Black
Swatch image Multicam Tropic
Swatch image Woodland

Product Description

The Micro Fight Chest Rig Mk4 is designed to be extremely efficient, modular, and lightweight. The Micro Fight works seamlessly with Spiritus’s accessories suite, which offers nearly endless configurations. The Micro Fight features soft Hook/Loop in both pockets to enable you to put mission essential items where you want them based on your individual needs. The improved profile allows for the use of six 5.56 x .45 style magazines or four 7.62 x .51 magazines or any combination of rifle and pistol magazines. The 5” x 9” field of hard Hook/Loop on the back of the rig allows for solid integration with accessories, such as the SACK Pouch or Expander Wings. The larger Hook/Loop field also allows a solid integration onto plate carriers, such as the LV119. In addition to the larger Hook/Loop field, the MK 4 also allows for sub-load integration of a tourniquet utilizing the two integrated grommets and our Universal Retention Kit.


Unmatched Versatility:

The Micro Fight Chest Rig sports a host of accessories like no other system. The user can select from any of our accessories to meet operational requirements. The platform is lightweight and small while still allowing you to carry multiple types of munitions and equipment. Examples include rifle and pistol Magazines, 37/40mm grenades, flash-bangs, multi-tools, flashlights, medical supplies, and breaching equipment.

Stand-Alone System:

The Micro Fight Chest Rig was designed to perform as a stand-alone system. It can be configured for wear in low visibility environments that require minimal printing through clothing with maximum equipment storage. It can also be configured for high visibility operations where a full spectrum of equipment is required.

Placard Configuration:

The Micro Fight Chest Rig was designed to work seamlessly as a “Placard” for plate carrier systems. Simply remove the 1-inch side release buckles and attach the system via the hard Hook/Loop located on the back of the system to your plate carrier. This configuration allows for profile expansion or reduction as mission requirements change.

Note from Manufacturer: The CHASSIS is part of the Micro Fight Chest Rig System. This item does not include shoulder straps, back strap, half or full flaps, magazine inserts, or any other accessories. Additional components are required for proper use. If running as a stand-alone system, shoulder straps, back strap, magazine inserts, and possibly full or half flaps are needed. If running on a plate carrier, flap(s), and magazine insert(s) are needed.

Some images shown with optional accessories, sold separately.




Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit www.P65Warnings.ca.gov

Customer Reviews

Based on 2 reviews
Matt T.

Spiritus Systems Micro Fight Chassis Mk4

Good kit

Perfect slim line carrier. Retains the mags well and doesn’t get in the way like other systems out there. If you are looking for a rig you won’t be disappointed in this one if purchased. It was between this and the Haley strategic d3crm micro. Both are great options. I went with this one due to the H harness over the x harness