The Ten-Speed Chest Rig was designed by Blue Force Gear as a low profile"" ultralight load-carriage system. It comes in two sizes: M4 / AR"" which holds 4 magazines"" and SR25 / AK"" which holds three magazines. The side of the chest rig has two 3 x 3 MOLLE fields for mounting accessories like Trauma Kits"" pistol mag pouches"" utility pouches"" or other MOLLE compatible pouches. The Ten-Speed military-grade elastic creates high-retention mag pouches that lay flat when not in use.