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Reviews & Ratings for Monstrum Guardian 3-9x40mm 1in Tube Rifle Scope, Second Focal Plane — 6 reviews

(6 reviews)
Monstrum Guardian 3-9x40mm 1in Tube Rifle Scope, Second Focal Plane
Monstrum Guardian 3-9x40mm 1in Tube Rifle Scope, Second Focal Plane
$69.95 $59.99 Save 14%
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Most Helpful Positive Review Solid scope for the price
Good value for a scope. 4 to 5 inch eye relief. Good clarity, not too heavy. Zoom ring is stiff until used a bit, but it gets easier. The reticle is a nice thin hash marked cross that can be illuminated green or red. I have a few of these Monstrum Guardian scoped and temd to use these 3-9x40s on a few of my hunting style rifles. I have a pretty good library of scopes, and I have really liked using these lately. As for durability, I have 1 mounted on a 45-70 and had another mounted on a 300WM with no issues after quite a few rounds down range. The le s clarity is good but not great. Especially ...
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As expected

by EP25, Verified Owner from WI, United States Written on January 11, 2026
Got this for my son's new 22LR. It's what you would expect for a $60 scope. Holds zero fine for its use. Easy mounting, easy sighting. Reticle definitely has a little distortion on the outside of the sight window, but seems to hold solid in the center. Illuminated reticle does what it's supposed to do. Overall a reliable scope for someone on a smaller budget.
Pros:
  • Easy setup
  • Illuminated reticle
  • Budget
  • Red/Green with adjustable brightness
Cons:
  • Outer edge distortion
Would recommend: Yes
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Monstrum scope

by Michael, Verified Owner from TX, United States Written on December 17, 2025
Great piece of hardware, clear, optics, durable waterproof, and all the good stuff but highly Recommend two hunters
Pros:
  • Easy Installation Fool Proof
Cons:
  • None
Would recommend: Yes
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Monstrum Scope

by Rod Dobber, Verified Owner from OK, United States Written on November 8, 2024
I recently ordered a Monstrum scope. It isn’t a top of the line optic in terms of dollars, but it functions as a top of the line optic. It zeroed in the rifle I put it on with just a few shots. The glass is clear and the controls work well. I have no complaints.
Would recommend: Yes
1 of 1 found the following review helpful.
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Monstrum Optics

by Rod Dobber, Verified Owner from OK, United States Written on October 3, 2024
This is a good scope for a budget build. Clear glass, adjustments work well, and it functions like a more expensive optic.
Would recommend: Yes
1 of 1 found the following review helpful.
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affordable

by jackson, Verified Owner from GA, United States Written on March 2, 2024
I own 3 of these and they are sufficient for me to hunt or target practice. 2 are on 300 bo ar pistol and 1 on 223 wylde ar pistol. Cant imagine spending more to no get much more. I would recommend to anyone hunting or plinking.
Would recommend: Yes
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