FFP Brief Introduction: Most scopes have the reticle fitted in the second focal plane (near the eyepiece). While, presently it has always been the practice to fit the reticle in the first focal plane (the reticle increases its size when change the magnification from low to high). Each system has its advantages.
The advantage with telemetric reticles (like rangefinder & Mil-dot etc) is that the target image and distance between dots remains constant even when changing magnification. It is the system that is widely used by the TOP military suppliers now.
FREE SHIP and FREE 30mm Tactical One Piece Triple Rails Picatinny Mount, Long Eye Relief, First Focal Plane Etched Glass Reticle with Germany Tech,Min Focus 12 Yards, 30mm Monotube, Elastic & Flip-up Caps, Honeycomb Sunshade, Green and Red Illumination and Side Focus.

Specification
Model: SCFF-04 Sagittarius
Magnification: 10-40x
Objective Lens Dia: 56mm
Ocular Lens Dia: 34mm
Ocular Length: 56mm
Exit Pupil: 1.4-5.6 mm
Length: 440mm (17.3 inch)
Weight (net): 865g (30.5 ounce)
Eye Relief: 81-102 mm (3.2-4.0 Inch), long eye relief
Field of View (ft@100yds): 2.5-10
Field of View (M@ 100M): 0.8-3.1
Field of View (@100yds):0.48-1.90°
Num of Lens: 11
Optics Coating: Fully-Multi Coated
Parallax: ±0.125
Side Focus Range: 12 Yard to unlimited
Reticle: Front Focal Plan Etched Glass Mil-Dot Reticle (picture shown)
Elevation Range: ±15 MOA
Windage Range: ±15 MOA
Battery: CR2032(Excluded)

Feature
5 levels green and red brightness side illumination system
30mm Hammer-forged Monotube
Shock proof (1000g), water proof (at 300mm and 54 degree) and fog proof (Nitrogen Purged)
High-durability aluminum alloy in black matt and beautiful complement
Feature 1/8 M.O.A direct high finger windage and elevation turrets adjustment
Fast focus eyepiece at ocular lens adjustment