Description UPDATE: Arm brace to be removed from gun Aero Precision X15 set up in 5.56mm with one, ten round removable magazine and a 13″ barrel with muzzle device. Adjustable arm brace with Velcro strap. Magpul serrated composite pistol grip. Matte black finished metal upper and lower receiver. Matte black finished metal Mlok front forend with composite Magpul MVG front foregrip. Rear receiver located serrated arm brace adjustment button. Left side of frame serrated safety switch and action release. Right side of frame magazine release. Magpul MBUS front and rear flip up adjustable sights. Top mounted rail for optics and accessories. Aftermarket ambidextrous Radian Raptor charging handle. Comes in a Bulldog zipper carry case. Must ship to a FFL holder. CT Legal Condition: Like New with light scuffs and handling wear. Clean rifled bore. Barrel Length: 13″ Serial: X459107 Manufacturer: Aero Precision Caliber: 5.56 Multi Model: X15 Book# 9-588