looking to buy a small smg like m12,mp5 or a krytac sdp/pdw to run along side a light machine gun. looking for a full metal gun or a conversion kit for m4. i have a few guns to bargain with or cash money. not looking for something overly expensive because it’s just going to be a backup when running the saw. so if you have a $3000.00 fully upgraded scorpion evo and such please i don’t want to waste your time open to gas guns but no pistols thank you