Name: 3X Magnification Color: Black Magnification: 3X Length: 119 mm Weight: 385g Rail Type: 20mm weaver rail Material: Aluminum and Rubber Features: Flip To Side Mount Base Quick launch buckle clean install Fits all 20mm weaver rail Package includes: 1* 3X Features: 551 -Power safe feature, automatic power-off in 2 hours-Easy to setup, suits any 20mm rail/0 inch rail -Elevation and Leverage adjustment at the side of sight -Battery: four x LR44 batteries (no included) -Dimension: 10 cm (L) x 5cm (W) x 6cm (H) -A: brightness adjustment (upward) -B: brightness adjustment (downward) -C: Reticle coloration switching (Red / Green) -Packing: 1 X sight 552 Magnification: 1 Objective Lens Dia: 30x22mm Length: 130x50x65mm Weight (net): 275g (9 ounce) Field of View (100yds): 30 yards Optics Coating: Multi Coated Reticle: Red and Green Reticle with five Levels Brightness Power Supply: Two items of AA battery (no included) Evaluation Range: MOA Windage Range: MOA Feature half M windage and elevation with audible clicks Battery sort :RCR123A, LFP123A, CR123A -Packing: 1 X sight 553 Name :553 sight Exit-pupil:8MM F:146 Eye relief :unlimited optics coating :multi covered Adjustment : Windage and Elevation 0 Maximum Output Power:>OMW,<1mw> Power Supply: 1 piece CR123A 3V or 1x CR20323V lithium(no included) -Packing: 1 X sight 556 Optics:Transmission holography – parallax free Length/Width/Height: 3″ x 2″x 2″ Battery Type: CR123 (Not included) Waterproof: Submersible to ten feet depth Sealing:Fogproof inside optics Adjustment (per click): half of MOA Adjustment Range:+/- 40 MOA travel -Packing: 1 X sight 558 Magnification: 1x Reticle: Red / Green Dot Exit scholar distance: 20 (mm) Exit scholar diameter: forty (mm) Field of view: 15 Maximum Output Power:>1MW,<5MW Quick-detach lever for easy attachment and removal Fits for 20mm rail · Unit Type: piece · Package Weight: zero (0) Power Supply: 1* CR123A(no included) -Packing: 1 X sight 1 x scope or 1 x Riflescope and 3x sight Note: Due to different display screen and light-weight effect, the particular shade of the article is probably slightly varied from the color confirmed at the pictures Thank you Please allow 1-2cm measuring deviation thanks to manual size