Never fired or chambered a round (aside from factory testing) Sons of Liberty Gun Works M4-89. It has a 13.9" barrel with a pin and welded NOX muzzle device to bring to barrel length to 16". This is one of the shortest lengths you can go without needing to do any NFA paperwork. The NOX is compatible with Deadair Keymo mounts. Has LaRue MBT trigger installed. It comes with the bag, 2 magazines, lock, and the SOLGW swag. $1600 and will consider shipping. Text is best 832-429-8930. Willing to ship.