Looking sell my evolve weapon systems 12.5 upper. Has a quad rail on it. Very smooth shooting upper. Comes with the Samson manufacturing grip I have attached in the pics. Mid length gas system, radian charging handle. Getting KAC performance for a lot lower price. Pretty low round count. Text 8633331580. Would prefer to sell, but will consider trades. Beretta A300 will get a preference for a trade. Make an offer.