Cover with Alice clips for USGI Tri-Fold Shovel. ...and Sleep System Carrier, assembled according to the official MOLLE... SLEEP MATS USGI Issue 2 for $22.00 Shipped CJL ENTERPRIZE. US Army Zračni Madrac Q4 USGI Self-Inflating Sleep Mat Olive. USGI OD Sleeping Bag Cover. This super-warm 3-Pc. modular system is what U.S. troops use in arctic. USGI Modular Sleep System Complete Used. usgi - army imss - improved modular sleep system. usgi poncho and liner sleeping bag setup. Usgi Ecws Goretex Modular Sleep System Sleeping Bag Mss -40â / 4 Part. Модульная спальная система (MSS - Modular Sleep System) США. Уникальная система закрытия позволяет комбинировать между собой. My new Camping pack: USGI SPEAR UM21 (56K pound sand!