It's ONLY Been Used Twice 100rds, Upgraded RISE ARMAMENT BCG

FN FN15 M4 Military Collector 5.56 NATO 36318 

MANUFACTURER: FN
FAMILY: FN15 Series
MODEL: FN15 M4
TYPE: Rifle
ACTION: Semi-Auto
CALIBER/GAUGE: 223 Rem | 5.56 NATO
FINISH: Matte Black
FINISH TYPE: Black
STOCK: Collapsible / Folding Stock
STOCK/GRIPS: 6-Position w/Pistol Grip
BARREL: 14.7"
RATE-OF-TWIST: 1-in-7
CAPACITY: 30 + 1
SIGHTS: A2 Front/Back Up Rear
SIGHT TYPE: Fixed Sights
WEIGHT: 6.6 lbs
SHIPPING WEIGHT: 11.2 lbs.
ADDL INFO: Chrome-Lined Barrel
ADDL INFO: Knights Armament M4 Rail
MFG MODEL NO: 36318
UPC: 845737006211