Double M4/M16 Shingle (Short), Black Shingle style with adjustable lateral shock cord retention designed to fit two (2) M-4/M-16/AR-15 20rnd or 30rnd magazines. Maxpedition 9825B Double M4/M16 Shingle (Short), Black Features: • Shingle style with adjustable lateral shock cord retention • Designed to fit two (2) M-4/M-16/AR-15 20rnd magazines • Also fits 30rnd magazines with more exposed mag for "direct action" • Compatible with Magpul PMags • Field replaceable shock cord and hardware • Frontal 1.5" x 2.75" loop fields for I.R. and other patches • Attaches using two 3" TacTie Attachment Straps (optional accessory