The D3CR&trade:-H addresses the same mission as the original D3CR&trade:, but has been slightly redesigned to support .308 platforms. Optimized for work in urban, vehicle, rural and other confined settings, the Disruptive Environments&trade: Chest Rig was built to be worn as a stand alone system with a detachable X-harness or clipped into a armor platform equipped with a quick release system.When run as a stand alone, the platform is low profile enough to be worn fully loaded and not print on a normalloose fit jacket or sweatshirt. When run on a armor platform with a quick release system, such as SwiftClips&trade:, it can be attached or stowed in seconds, giving the end user the versatility to transition from low vis to high vis or vice versa.The rig intentionally does not include a radio or dedicated full size medical pouch so no matter the posture, essentials such as communications and medical kits can remain on the end user at all times. The D3CR&trade: Heavy is also compatible with the Haley Strategic D3 Expansion System allowing the end user to add features including the holster wedge or multi-mission hanger pouch.The rifle magazine pouches accept almost any .308 magazine. The Multi-Mission Pouches accept 1911, Glock, Sig, M&:P, XD and other standard double or single stack pistol magazines, as well as many handheld lights and multi-tools.