HK UMP GBB MAGAZINE 30 ROUNDS m4-ar15 Receiver Plastic Rail Plastic Overall

Receiver Plastic Rail Plastic Overall Length 673mm Weight 5

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

It adjusts the trigger reset point during rapid fire

1v LiPo batteries and hit the field

HK UMP GBB MAGAZINE 30 ROUNDS m4-ar15 Receiver Plastic Rail Plastic OverallOne 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