Id recomend staying away from them, they are made by umarex. That company is very fond of potmetal castings in the firearms they make , that garbage has no real strength and no place in a firearm imho. Search for my experiences here with a walther p22, its made by umarex too. I wouldnt touch anything made by that company. That said, i own a gsg5 and its well made with no pot metal parts. Very little was changed on them to comply with h&ks lawsuit, just cosmetic items.