MANUFACTURER: Springfield Armory
FAMILY: Hellion Rifle Series
MODEL: Hellion
TYPE: Rifle
ACTION: Semi-Auto
CALIBER/GAUGE: 223 Rem | 5.56 NATO
FINISH: Black Anodized
FINISH TYPE: Black
STOCK/GRIPS: 5-Position Adjustable
BARREL: 16"
OVERALL LENGTH: 28.25" - 29.75"
RATE-OF-TWIST: 1-in-7"
CAPACITY: 30 + 1
# OF MAGAZINES: 1
MAG DESCRIPTION: 30 rd.
SIGHTS: Low Profile Flip-Up Front/Rear
SIGHT TYPE: Adjustable Sights
THREAD PATTERN: 1/2x28
SPECIAL: Threaded Barrel Model
WEIGHT: 8 lbs.
SHIPPING WEIGHT: 11.85 lbs.
ADDL INFO: Bullpup Design
ADDL INFO: 4-Prong Flash Hider
ADDL INFO: Ambi, NR Charging Handle
MFG MODEL NO: HL916556B
UPC: 706397956776

https://www.thegunparlor.com/products/springfield-armory-706397956776-706397956776-3873