Farris Optics Primus Rifle Scope 1in Tube Second Focal Plane Black. Utilizing the second focal plane the Primus maintains reticle size - perfect for dark or dense environments. Shock-proof fog proof and waterproof; the Primus preserves focal clarity even in the harshest conditions. Adjustable turrets hold 1/4 " Click value for accurate tracking and feature caps for safe and easy transport. The Farris Optics Primus 3-9x40mm is the ultimate rifle scope for your next outing. Specifications for Farris Optics Primus 3-9x40mm Rifle Scope 1inch Tube Second Focal Plane: Manufacturer: Farris Optics Objective Lens Diameter: 40 mm Magnification: 3 - 9 x Tube Diameter: 1 in Reticle Focal Plane: Second Focal Plane (SFP) Field of View Linear: 12.6 - 38.4 ft at 100 yds Eye Relief: 3.4 in Color: Black Weight: 14.6 oz Adjustment Click Value: 0.25 MOA Length: 12.4 in Gun Type: Rifle Package Contents: Farris Optics Primus 3-9x40mm Rifle Scope Farris Optics 3940P: Primus Rifle Scope 3-9x40mm 1in Tube Second Focal Plane Black