If you're not planning on bringing extra mags to the big game next weekend, you're not planning on winning. One magazine just won't make the grade. Get high marks on your gaming report card with a few extra 120-round mid-capacity magazines for your HK UMP airsoft AEG. Most players say four to five mid-cap magazines are the optimal amount to provide you with enough ammo to last the whole game. There's not much more frustrating than having to head back to the staging area before the dust settles due to insufficient ammo. Make sure that doesn't happen and pick up some extra magazines for your HK UMP! Licensed Trademark of Heckler & Koch GmbHPerformance Ammo Classification Airsoft BB Product Features Capacity 110 Packaging Specs Packaged Length 1.25 Packaged Height 14 Packaged Width 4 Packaged Weight 1 Warranty URL https://www.umarexusa.com/pages/30-day-warranty