KJW GBBR M4. This thing is... interesting. This is the plastic body version so the key mod rail tends to go loose real quick because of plastic threads. Previous owner said the internals are full metal RaTech but I have no idea how to check. I highly do not recommend fielding this unless you know what you are doing. But it's fun to shoot around. I have 5 mags. 2 Stagnag and 3 Canadian ones. I only have one speed loader. I have no idea if the mags leak. I know at least one doesn’t. No flash hider. Selling as is, no refunds Make an offer. I want to buy other things lol $140 shipped obo