Note:the green one and red one rail is different ,please sure ,thanks

Fiber Sight-black with Red dot

Objective diameter: 28mm

Field of view: infinite
Lens coatings: fully coated
Body: aluminum
Length: 142mm

Mount type: shotgun rib10mm width fit
Net weight: about 52g
Weight with box: about 127g
Included accessories: allen wrench and cloth.

Fiber Sight - Color: black with Red/green dot

Charateristics:

Optional design: Fiber optic/reflex sight

Reticle - circle dot

Mount type: shotgun rib 5.5-10mm width fit

Objective diameter: 27mm

Field of view: infinite

Eye relief: infinite

Lens coatings: fully coated

Body: aluminum

Waterproof: yes

Size: 150 x 40 x 40 mm

Weight: 2 ounces 750grams

Included accessories: allen wrench