I believe a KWA Mac 11 with very proprietary threads. Has 2 mags, one I think is having some problems keeping gas, other works fine. Has a lot of wear on the mags, very little on the gun except the stock and barrel. Shoots really fast on full auto! This has a lot of rounds through it for sure, I am the second owner and have put a lot through it myself. Price is negotiatable and will only ship if buyer pays all fees. I am happy to send specific pictures and details upon request. I will only trade for p90 upgrades like a pro win hop up or some really nice mid caps. If you are interested I also have a Krystal Kris's vector with the real Kriss USA rail and tan Osprey. I also have an EF H8R ***I am so sorry to anyone I have not responded to. I got a new phone earlier this year and it turned off notifications from HopUp so I haven't seen any messages from around February on. If still interested, send me another message so I can get back to you. Again, so sorry