Check out this review of the G&G EGMA4 STD EBB done by Timerzanov Airsoft... "Hello ! Today a little video review of the famous MP5A4 Blowback from G&G Armement. The MP5 A4 is a submachine gun produced by the German firm Heckler & Koch since the 1960s, used by various police services around the world. G&G Armament offers a replica of the MP5A4 under the name EGMA4. We find an ABS finish with good strength.

This model has a fixed stock and a compact size, ideal for short distance engagements in CQB. The EGM A4 G&G Armament is equipped with a blowback system for more realism. You will need to use NiMh Type Large batteries that fit into the stock or buy a tamiya large to tamiya mini adapter."