{"title":"Spiritus Systems - Chest Rigs \u0026 Accessories","description":"\u003cp\u003eWelcome to the Spiritus Systems Chest Rigs \u0026amp; Accessories Collection at PTS Steel Shop. Spiritus Systems is renowned for pioneering modular, low-profile load-bearing equipment. Discover the flagship Micro Fight Chest Rig chassis (MK4 \/ MK5), Thing 1 and Thing 2 expansion side wings, Fat Harness straps, and an extensive system of elastic magazine inserts, flaps, and add-on pouches. Designed to give operators total control to build a lightweight, mission-specific chest rig setup for any engagement.\u003c\/p\u003e","products":[{"product_id":"spiritus-back-strap","title":"Back Strap – Retention \u0026 Sling for Spiritus Chest Rig","description":"\u003cp\u003eThe Back Strap is an essential component for Spiritus Micro Fight or 34A Chest Rig systems, providing retention to keep your chassis close to the body.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAttaches to the lower buckles of the chest rig and wraps around the lower back for a secure fit.\u003c\/li\u003e\n\u003cli\u003eCan be used as a sling for cross-body “Go Bag” configuration.\u003c\/li\u003e\n\u003cli\u003eAdjustable from 8” to 36” to suit a wide range of users.\u003c\/li\u003e\n\u003cli\u003eRequired for running the chest rig as a stand-alone system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Does not include chassis, Fat Straps, Magazine Inserts, or other accessories.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spiritus Systems","offers":[{"title":"Black","offer_id":45431757668542,"sku":"SP105530307","price":110.0,"currency_code":"HKD","in_stock":false},{"title":"Coyote Brown","offer_id":45431757701310,"sku":"SP105530311","price":110.0,"currency_code":"HKD","in_stock":false},{"title":"MultiCam","offer_id":45431757734078,"sku":"SP105530338","price":110.0,"currency_code":"HKD","in_stock":false},{"title":"Ranger Green","offer_id":45431757766846,"sku":"SP105530359","price":110.0,"currency_code":"HKD","in_stock":false},{"title":"Multicam Black","offer_id":48828314157246,"sku":"SP105530392","price":110.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/files\/SP105-CHESTRIGMC.jpg?v=1758602510"},{"product_id":"spiritus-fat-strap-mk4","title":"Fat Strap Mk4 – Universal H-Harness for Spiritus Chest Rigs","description":"\u003cp\u003eThe Fat Strap Mk4 is a universal H-harness designed for Spiritus Micro Fight Chassis, 34A Split Chest Rig, and Thing 3 expansion chassis.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduced profile design with Nylon Laminate overlay panel featuring horizontal mounting points for PTTs and other gear.\u003c\/li\u003e\n\u003cli\u003eShock cord holes for additional equipment attachment.\u003c\/li\u003e\n\u003cli\u003eBack loop field patch for name tapes or IR markers.\u003c\/li\u003e\n\u003cli\u003eSingle strap design; only one is required per chest rig system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Part of Micro Fight and 34A Chest Rig systems. Does not include chassis, Back Strap, Magazine Inserts, or other accessories.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spiritus Systems","offers":[{"title":"Black","offer_id":45431938023614,"sku":"SP107530307","price":460.0,"currency_code":"HKD","in_stock":false},{"title":"Coyote Brown","offer_id":45431938056382,"sku":"SP107530311","price":460.0,"currency_code":"HKD","in_stock":false},{"title":"MultiCam","offer_id":45431938089150,"sku":"SP107530338","price":460.0,"currency_code":"HKD","in_stock":false},{"title":"Ranger Green","offer_id":45431938121918,"sku":"SP107530359","price":460.0,"currency_code":"HKD","in_stock":false},{"title":"Multicam Black","offer_id":48828318613694,"sku":"SP107530392","price":460.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/files\/SP107-FatStrapMk4bk.jpg?v=1758603957"},{"product_id":"spiritus-micro-fight-chassis-mk4","title":"Micro Fight Chassis Mk4 – Modular Tactical Chest Rig Platform","description":"\u003cp\u003eThe Micro Fight Chassis Mk4 is a lightweight, modular, and highly versatile chest rig platform. Designed for maximum efficiency, it works seamlessly with Spiritus Systems Accessories Suite, offering nearly endless configurations.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSoft loop fields in pockets allow mission-essential items to be positioned according to operational needs.\u003c\/li\u003e\n\u003cli\u003eCompatible with 5.56\/.45, 7.62\/.51 rifle magazines, Sub-Gun Inserts, and single or double pistol magazine inserts.\u003c\/li\u003e\n\u003cli\u003e5” x 9” hook field on the back enables integration with accessories like Sub Abdominal Pouches, Gloves\/Chemlight Hook, or Expander Wings.\u003c\/li\u003e\n\u003cli\u003eSupports plate carrier attachment (e.g., LV-119) and sub-load integration for a tourniquet using grommets and Universal Retention Kit.\u003c\/li\u003e\n\u003cli\u003eCan function as a stand-alone rig for low-visibility operations or as a placard on plate carriers for full-spectrum loadouts.\u003c\/li\u003e\n\u003cli\u003eLightweight, compact, yet capable of carrying munitions, flash-bangs, multi-tools, medical supplies, and breaching gear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Does not include Shoulder Straps (Fat Straps), Back Strap, Half\/Full Flaps, Magazine Inserts, or other accessories.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spiritus Systems","offers":[{"title":"w\/o Fat \u0026 Back Strap \/ Black","offer_id":45431961714878,"sku":"SP108530307","price":700.0,"currency_code":"HKD","in_stock":false},{"title":"w\/o Fat \u0026 Back Strap \/ Coyote Brown","offer_id":48836831117502,"sku":"SP108530311","price":700.0,"currency_code":"HKD","in_stock":false},{"title":"w\/o Fat \u0026 Back Strap \/ MultiCam","offer_id":48836831150270,"sku":"SP108530338","price":700.0,"currency_code":"HKD","in_stock":false},{"title":"w\/o Fat \u0026 Back Strap \/ Ranger Green","offer_id":48836831183038,"sku":"SP108530359","price":700.0,"currency_code":"HKD","in_stock":false},{"title":"w\/o Fat \u0026 Back Strap \/ Multicam Black","offer_id":46667328946366,"sku":"SP108530392","price":700.0,"currency_code":"HKD","in_stock":false},{"title":"Complete Package \/ Black","offer_id":48836831215806,"sku":"SP108530807","price":1270.0,"currency_code":"HKD","in_stock":true},{"title":"Complete Package \/ Multicam Black","offer_id":48836831346878,"sku":"SP108530892","price":1270.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/files\/SP108-MicroFightChassisMk4MC.jpg?v=1758608628"},{"product_id":"spiritus-placard-556-x45","title":"Placard 5.56 X .45","description":"\u003cp\u003eThe Spiritus Systems Placard 5.56 X .45 provides superior retention for 5.56 magazines and mission-critical gear. Its elastic cells flex to fit various equipment, while the open-bottom design prevents items from being pushed out. Laminate pull tabs make re-insertion easy, and the full hook backing secures to your plate carrier. With included ITW Nexus hardware, the Placard can convert into a compact chest rig. Compatible with Fat Straps, Back Strap, THING 3, Bungee Retention Kit, SACK, and more.\u003c\/p\u003e","brand":"Spiritus Systems","offers":[{"title":"Black","offer_id":45436634529982,"sku":"SP123530307","price":555.0,"currency_code":"HKD","in_stock":true},{"title":"Coyote Brown","offer_id":45436634562750,"sku":"SP123530311","price":555.0,"currency_code":"HKD","in_stock":false},{"title":"MultiCam","offer_id":45436634595518,"sku":"SP123530338","price":555.0,"currency_code":"HKD","in_stock":false},{"title":"Ranger Green","offer_id":45436634628286,"sku":"SP123530359","price":555.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/files\/SP123-Placard5.56x.45bk.jpg?v=1758712576"},{"product_id":"spiritus-systems-micro-fight-chassis-mk-6","title":"Micro Fight Chassis Mk 6","description":"\u003ch5\u003eThe Modular Core for Modern Tactical Chest Rigs \u0026amp; Plate Carrier Placards\u003c\/h5\u003e\n\u003cp\u003eThe Spiritus Systems Micro Fight Chassis Mk 6 builds on the proven architecture of the Micro Fight series, combining lightweight low-profile capability with enhanced structural modularity. Engineered for real-world missions and high-mobility shooting disciplines, the Mk 6 serves as a standalone micro chest rig hub or a dedicated front placard for plate carriers.\u003c\/p\u003e\n\u003cp\u003eFeaturing front and lateral MOLLE attachment points, the Mk 6 allows users to scale their loadout without added bulk. The main single-cell compartment is lined with loop Velcro on both interior walls, accepting Spiritus Systems' entire lineup of elastic magazine inserts for 5.56, 7.62, and SMG platforms.\u003c\/p\u003e\n\u003ch6\u003eKey Features \u0026amp; Technical Highlights\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eLaser-Cutt \u0026amp; Standard MOLLE Matrix: Front and side exterior MOLLE accommodates tourniquet holders, GP pouches, or additional mag retention without sacrificing a slick profile.\u003c\/li\u003e\n\u003cli\u003eVelcro Loop Main Compartment: Fully lined interior secures modular magazine inserts seamlessly, enabling rapid caliber swaps.\u003c\/li\u003e\n\u003cli\u003eTop Anchor Point Array: Integrated anchor loops along the top rim allow compatibility with Bungee Retention Kits for airborne or high-impact operations.\u003c\/li\u003e\n\u003cli\u003eFirstSpear Tubes Compatibility: Side buckle mount locations accept FirstSpear Tubes hardware to streamline cummerbund integration on plate carriers.\u003c\/li\u003e\n\u003cli\u003eUniversal Placard Footprint: Matches the Mk 5 footprint for complete backwards compatibility with LV-119 \/ LV-120 systems, Thing 3 chassis expanders, and standard shoulder straps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eApplications\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Visibility \u0026amp; Recon Operations:\u003c\/strong\u003e Scaled down to a slick profile for minimal printing under outer layers while retaining essential ammunition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitive Shooting (USPSA \/ Tactical Games):\u003c\/strong\u003e Configured as a high-ride chest rig that stays rigid during swift sprints and technical reloads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilsim \u0026amp; Airsoft Loadouts:\u003c\/strong\u003e Swappable inserts allow a single chassis to adapt instantly across AR, AK, or PCC secondary platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eOperational Specifications\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eConstruction: Berry Compliant 500D Cordura Tactical Nylon\u003c\/li\u003e\n\u003cli\u003ePackage Includes: Micro Fight Chassis Mk 6, Side Release Buckles\u003c\/li\u003e\n\u003cli\u003eNote: This item is the Chassis platform only. Harnesses, back straps, magazine inserts, and additional pouches are sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spiritus Systems","offers":[{"title":"MultiCam","offer_id":48420614537406,"sku":"SP198530338","price":600.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/files\/14937_source_1775219675.jpg?v=1785824991"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/0368\/2494\/collections\/Chest_Rigs_Billboard_1350_x_300.jpg?v=1791527968","url":"https:\/\/pts-steelshop.com\/collections\/spiritus-systems-chest-rigs-and-accessories.oembed","provider":"PTS Steel Shop","version":"1.0","type":"link"}