Maxpedition Jumbo A.S.R. Backpack Nylon Main compartment: 11"(L) x 4"(W) x 9"(H) Double zippered flap lid, with 3/4" stitched webbing loop handle Folding Map Pocket - holds map folded to 11" x 13" in clear vinyl window Under flap w/ 1.5" SRB and Hook & Loop closure: 3x Double Magazine Pouches, 2" x 4" (elastic retention); With drainage grommets; Each pouch holds 2x 30rnd 5.56mm NATO AR-15 mags, 1x .308 mag, or 1x 30rnd AK-47 mag