This is a BSA Optics Rifle Scope known as the Tactical Weapon, model TW4X30.
The Tactical Weapon Series scopes are engineered specifically for use with tactical style firearms. Select Tactical Weapon models offer one-piece weaver mounts" AR handle mounts" or AR & SKS mounts and rings.
Features:
MAGNIFICATION LOW: 4X
MAGNIFICATION HIGH: N/A
OBJECTIVE LENS DIA. (MM): 30
ADJUSTMENT GRADUATION (MOA): 1/4
LENS COATING: Fully Coated
W/E ADJUSTMENT RANGE: 45
EYE RELIEF (INCHES): 4.2
FOV LOW @ 100' (FT): 22
FOV HIGH @ 100' (FT): N/A
PARALLAX SETTING (YDS): 100