Blackbird G3 1.5x20 Prism Scope with Shake Awake

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1.5x20 Blackbird Prism 

Ultra-Compact Prismatic Scope

Now featuring shake awake! The Monstrum Blackbird 1.5x Prism Scope is a compact, yet heavy duty prism scope with a fixed 1.5x magnification and a 20mm objective lens, ideal for rapid short range target acquisition. The scope uses a glass prism optical system rather than a refracting lens system like traditional scopes, allowing for better optical quality in a much smaller package. Features crystal clear optics, an adjustable focus lens, and a comfortable eye relief of 3+ inches.

SKU: PB1520-B

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Technical Specifications:

Magnification: 1.5x
Objective Diameter: 20 mm
Materials: 6061 Aircraft Grade Aluminum
Reticle: Circle Dot
Scope Range: Close Range, 100+ Yards
Rail Mount Torgue: 30 in/lbs
Eye Relief: 3.0 - 3.5 in
Weight: 9.9 oz
Length: 2.7 in
Finish: Type-III Hard Anodization
Color: Black
Fog & Water Resistance: Yes, Nitrogen sealed

Monstrum now offers a lifetime warranty on all our products. If your product fails you in any way, contact us with your order number. We will either fix it or send you a replacement of equal or greater value.



The etched glass reticle illuminates in both red and green for a clean sight picture regardless of lighting or environment. And unlike traditional red dots, it can be used with or without the battery powered illumination source.


Available in 11-levels of red illumination for any application.

1.5x / 63.9 ft @ 100 yards


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