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Monstrum 3x30 Marksman Prism Scope
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Getting to Know Your Reticle
Circle Dot Reticle
The etched glass reticle illuminates 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.
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Getting to Know Your Reticle
Circle Dot Reticle
Available in red illumination for any application.
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Getting to Know Your Reticle
3x30 FOV
Field of View (FOV) @ 100 Yards: 39.3 ft
KEY FEATURES
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Getting to know your Prism Scope
Hard Anodized Finish
The Marksman 3x30 Prism Scope is as sharp as it looks. Featuring a hard anodized aluminum finish with 3x magnification.
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Precise Turret Controls
All adjustment assemblies are composed of solid brass which make them function smoother and more precise than before.
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Adjustable Diopter
Equipped with diopter adjustment to assist with focus of reticle and picture.
Marksman 3x30 Prism Scope
Compare our Lineup
Circle Dot, BDC, MX1 | Reticle: | Circle Dot |
3x | Power Level: | 1x |
| | Illumination: | |
Close Range, 200 Yds | Optimal Range: | Close Range, 100 Yds |
| | Multi-Spectrum Lens: | |
| | Shock & Water Proof: | |
Circle Dot, BDC, MX1 | Reticle: | Circle Dot |
3x | Power Level: | 2x |
| | Illumination: | |
Close Range, 200 Yds | Optimal Range: | Close Range, 100 Yds |
| | Multi-Spectrum Lens: | |
| | Shock & Water Proof: | |
Circle Dot, BDC, MX1 | Reticle: | Circle Dot |
3x | Power Level: | 3x |
| | Illumination: | |
Close Range, 200 Yds | Optimal Range: | Close Range, 200 Yds |
| | Multi-Spectrum Lens: | |
| | Shock & Water Proof: | |
Circle Dot, BDC, MX1 | Reticle: | Circle Dot or DX1 |
3x | Power Level: | 1x or 3x |
| | Illumination: | |
Close Range, 200 Yds | Optimal Range: | Close Range, 200 Yds |
| | Multi-Spectrum Lens: | |
| | Shock & Water Proof: | |
- Marksman 1x20 Prism Scope
- Marksman 2x24 Prism Scope
- Marksman 3x24 Prism Scope
- Cyborg Prism Scope Series
Luke
Reviewed in Canada on February 16, 2025
Its very heavy for its size but has a nice compact, low profile. Glass is okay considering it's half the price of most prism scopes
Brindin h
Reviewed in the United States on January 3, 2025
This is the best budget prism sight ever. Easy to zero easy adjust brightness and zoom. Hold zero no problem! Have it on my truck gun it’s been mortared a few times and have shot over 4K rounds with the sight on and it’s never gone off zero. I’ve had it for over a year and it’s yet to run out of battery life. If you’re looking for the best scope/sight for under 200$ then this is what you need!! I highly recommend this product and there brand
Customer
Reviewed in the United States on January 1, 2025
Looks good works good
Marc L.
Reviewed in Canada on February 9, 2024
I only regret I never tried this brand. They are extremely easy to use. With or without illumination, the aiming reticle is always visible.
Tristan
Reviewed in Canada on November 28, 2024
I had my doubts but the 3x magnification and permanent reticle without need for batteries makes this thing very useful out on the semi-auto plinking range. It looks great on my Kriss Vector. The construction seems solid, but I'm not about to throw it down a flight of stairs to test it either. I enjoy this unit so much I intend on purchasing a second one for my Snowpeak M60B .35. The Monstrum Tactical P330-B is a keeper.
Paige T
Reviewed in Canada on October 26, 2024
It struggles to hold zero and the eye relief is terrible. You have to be 1/4” away from it to see in the scope
Steve Shamblin
Reviewed in the United States on January 18, 2024
Ordered this as a slightly magnified alternative to my red dot. Image is clear, reticle lighting is nice, it has held zero with no issues so far (a couple of trips to the range), and seems pretty well made.Depending on your application…I would also recommend ordering a riser for it. I did and it sits nicely on my rifle. The eye relief is pretty good as long as your application doesn’t kick super hard. So far so good! I’d definitely recommend this for smaller rifle applications.
Sparky
Reviewed in the United States on January 24, 2023
Good: Nice, clear optic. Helps with astigmatism.Bad: The bars to engage the picatinny rail are not drilled at the same level...so...only one actually locks the mount to the rail? WHY?Eyebox is limiting. Have to be much closer to this scope than my others of the same magnification. Which is particularly weird, given that it's eye relief is listed as further than the other. Also can't move my head very much, or it's immediate shadows.And no where in the specs on the listing, do they mention height to center of the optic. It looks low - it isn't. Really no idea why that information wouldn't be listed, since it's one of the critical points to a scope - will it clear BUIS, is it too far above bore line/rail, etc?So, meh.
Customer
Reviewed in Canada on December 12, 2022
If you live in Canada, I would not recommend buying a scope from the US. You won't have any support and companies will not ship you parts or a replacement. For some odd reason, scopes cannot be shipped outside the US, unless you have a special license. I didn't know a scope could be dangerous. Weird!I bought the scope brand new in May. For an unknown reason, my battery is dead after using the scope only once. It was stored OFF and when I took it out this weekend, the battery was dead!?? I tried removing the cap, for the first time ever, in order to change the battery. Impossible! I tried with a coin, a screwdriver, and ended up messing up the cap. But it still won't budge! I finally managed to remove the cap with pliers. Needless to say it's not looking good anymore...Contacted the manufacturer, but they won't help me, because I live in Canada. They won't even send me a cap! Never buying a scope from the US again.
Bret
Reviewed in the United States on November 22, 2022
I slapped this bad boy on my homebrew rifle and it works like a charm, the reticle can be as bright as you would like it, and lasts quite a while when accidentally left on while in storage. I put a few rounds through it, jostled it around some (threw it at a tree), and it stayed true as ever. If weight is of concern for your build, this optic may not be right for you, but I like a bit of heft on my rifle, so it is a welcome addition. If paired with a nice set of canted iron sights, you have a trustworthy and aesthetically pleasing gun.
TimeTravelGuy88
Reviewed in the United States on September 16, 2020
I haven't used it at the range yet because of the shortage & all...but fit & finish is awesome! This thing looks so sick!...The reticle is clear, the focus ring is smooth, the glass is crystal clear, and the brightness levels are impressive (both red and green). The mount feels pretty solid too. A Youtuber named "704 Tactical" sold me on the sturdiness of the mount, he beat this thing up, it stayed on and held it's own.I'm REALLY hoping that it'll hold zero after a few hundred rounds, if it does, I'm getting a few more! As far as prism scopes I think this is the best bang for your buck. Yea there are other options like the Primary Arms 3x, but they cost twice as much...I hear NCstar makes a great prism scope too, but I like this one more. Hopefully it performs well, we'll see.I'll come back and update asap.
breeze90265
Reviewed in the United States on June 28, 2020
I am not sure if I am going to keep this sight but I have set it up on my latest AR for a close quarter 100 yard weapon. The pic on the right is the sight out of the box and the pic on the left is after I started to dial the sight in. At 100 yards I was able to keep a group no larger than the size of my hand. I also did run water over the sight under my sink and it is def water resistant. I never needed the illumination for bright daylight as the etched black was more than adequate. I read reviews of cracking glass etc so was a little skeptical about durability. I have put about 500 rounds through my M&P AR 15 Sport II and its still holding zero. I think my ammo was 556 62 grain green tip. Maybe better ammo would have resulted in a tighter group. I rotated from a resting supported to sitting upright to standing and still was able to stick within a group no larger than my hand. For that I give this sight a solid thumbs up and recommend it for a prosumer type sight. Well worth 110$.Update: I have fired well over a 1500 rounds from an M&P AR 15 Sport II and this sight has held zero out to 150 yards even from a free standing position. My set up is for close quarter shooting. I really like the etched circle dot in the glass in case you lose battery power to illuminate the circle. I rarely even use illumination on the sight except in very low light situations. Glass looks very clean. For the money I would but it again. I may buy one again and just keep in case the one Im using becomes damaged. I wanted to test and test before I update. So far it has held up to my particular needs. I feel confident aiming and relying on this sight. The only negative I could add is it didn't come with a storage cover but that doesn't warrant dropping it to 4 stars.
Mitch
Reviewed in the United States on July 11, 2018
I love it! Its built well, solid, no flaws. It was heavier than I imagined, but its very sturdy and that's what I was looking for. The scope is crystal clear with a decent eye relief. The reticle is clear and the lights work perfectly, amd are plenty bright/dim enough for any occasion.On a Milspec AR the scope "co-witnesses" the A2 front post (which doesn't work like a red dot because of the magnification) so I purchased the 7 slot monstrum quick Detatch adjustable riser for about 18$ and that is perfect for this scope and puts it at a comfortable eye level on its lowest setting but still keeps the sight clear of the front post.I haven't had the chance to go to the range but I'm sure it will have no problems as the construction is solid and its not a "cheep/crappy" sight, this thing feels like quality, on par with the major (expensive) brands.My only complain is that you can't get a cover for the lenses, but you don't really need them.it also comes with batteries installed plus replacements, along with a lense cleaning cloth.Hope this info helps some potential buyers, I recommend this sight without a doubt! Top quality at a fair price, no corners cut.
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