Anyone here have any time with these?
[img]http://www.gregorypacks.com/images/prod-um2101.jpg[/img]UM21 Back pack
[img]http://www.gregorypacks.com/images/um21_s_patrol.jpg[/img]UM21 Patrol pack
[img]http://www.gregorypacks.com/images/um21_s_but.jpg[/img]UM21 Butt pack  
Featuring the latest advancements in state-of-the-art technology, Bianchi International and Gregory Mountain Products have developed the ultimate backpack system for the 21st century warrior. Designed to meet the stringent field requirements of the U.S. Special Forces, Navy Seals and Army Rangers, this system combines superior load-bearing technology with advanced backpack design and offers a modular system capable of efficiently carrying up to 120 pounds of equipment.

This backpack system is part of the U. S. Government Body Armor Load Carry Program (BALCS) and consists of three components. These three, the Backpack, Patrol Pack and Butt Pack, have been uniquely configured, enabling a soldier to customize the load for specific mission requirements.

For over 20 years, Gregory packs have been world-renowned for their fit, comfort and performance. They have been used extensively as the pack-of-choice for world-class expeditions. Using a CAD/CAM system and precision technology, our R&D team, headed by Gregory founder Wayne Gregory, inventively modified a commercial pack that would transfer the load effectively, allowing for multiple adjustments to fit sizes ranging from the 5th to 95th percentile of the SOF operator.

In addition to the packs patented suspension system, another key feature of this system is its modularity: the Butt Pack attaches to the Backpack or the U. S. Government Load Carry System (ELCS); the Patrol Pack attaches to the Backpack, and is also compatible with SPEAR BALCS components.

The UM21 system is offered in woodland or desert camouflage configurations and can be procured as a complete system or in individual components.  
   
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EDIT to fix pics.

UM21 BACKPACK
Developed for long-range reconnaissance missions, this backpack, composed of aircraft-grade aluminum stays, a sturdy internal framesheet, Gregory’s Adjust•A•Cant™ hip belt and patented Flo-Form®II molding technology provides a highly efficient carrying system, capable of supporting extreme loads easily and comfortably.

The pack design provides for customized distribution of weight to allow the wearer to locate the optimum adjustment for various terrain or conditions of any march. By utilizing the pack’s suspension adjustments, weight may be shifted entirely onto the hips, entirely onto the shoulders or distributed evenly between the two.

State-of-the-Art Suspension

This system features several technologically advanced suspension elements designed and patented by Gregory, world renowned of premium expedition-quality packs.

Volume: 6337 Cu. In.  
   
UM21 PATROL PACK
Designed for short-range reconnaissance and other shorter duration operations. It can be carried attached to the main backpack via the universal attachment system or can be worn independently as mission requirements demand.

Key features include: two main compartments for efficient organization of gear, padded shoulder harness that wraps over the shoulders and around the chest, an adjustable waistbelt for customized comfort and a filter foam backpanel for excellent breathability and comfort.

Also integral to the design is a foam padded compression panel for storing additional gear and stabilizing the load. This panel includes the mil-spec universal attachment points allowing attachment of various pouches, converts to a seat and is also removable.

Volume: 1943 Cu. In.  
   
UM21 BUTT PACK
Features two compartments for efficient organization of gear and offers three modes of carry: via a web carry handle, attached to the main pack via the universal attachment system and around the waist via the integral waistbelt. The butt pack attaches and detaches quickly and easily from the backpack and patrol pack via universal attachment straps.

Volume: 507 Cu. In.  
     
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