Wts custom m16 Got it in a trade and it's a workhorse I know it's internally upgraded there's no doubt but I'm currently in the process of getting a parts list. Accuracy is insane and so is the range. It however had its flaws. It tends to lock up on semi but that can be fixed by switching to full. Also you have to hold the mag when you fire which isn't much a problem but something to note.This is a great back up gun or project gun. Throw in an hpa set up and you have yourself a god gun. I can provide a shooting video this weekend at my local field. I also have local players who can vouch for the performance on this gun. Also will trade for an akm, g3, ak series. Basically anything not an m4 or that takes m4 mags