HK UMP GBB MAGAZINE 30 ROUNDS m4-ar15 the Zero GRX Fracture Silver

the Zero GRX Fracture Silver design mimics the appearance of cracked stone with silver veining on a matte battleship gray base

Mini Catalog

Lightweight Neoprene Padding and Thermoplastic Rubber (TPR)

1v LiPo batteries and hit the field

Compatible with most airsoft guns

HK UMP GBB MAGAZINE 30 ROUNDS m4-ar15 the Zero GRX Fracture SilverOne 30 round HK UMP GBB mag is cool. But five 30 round mags is a party! The downside to the HK UMP Gas Blowback SMG being so fun to shoot is that the rounds in your 30 round magazine go quick. Better grab a few extra mags to stay in the game until you're the last one standing! Licensed Trademark of Heckler & Koch GmbH