Arken Optics 6-24X50 34mm Tube First Focal Plane Rifle Scope MRAD VPR. The SH-4J raises the bar now coming standard with Japanese ELD glass and choice of reticle (VPR or VHR). Like its predecessor The SH-4J incorporates adjustable elevation and windage turrets with tactile and audible clicks. These turrets offer 8 MILS/20 MOA per revolution. Specifications for Arken Optics 6-24X50 34mm Tube First Focal Plane Rifle Scope: Manufacturer: Arken Optics Objective Lens Diameter: 50 mm Magnification: 6 - 24 x Tube Diameter: 34 mm Reticle Focal Plane: First Focal Plane (FFP) Color: Black Package Contents: Arken Optics 6-24X50 34mm Tube First Focal Plane Rifle Scope Arken Optics SH4J-6241VPR: 6-24X50 34mm Tube First Focal Plane Rifle Scope MRAD VPR