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Availability:
In Stock.
Arrives
Jun 1 – Jun 2
Recently Viewed
Style: DX1 Reticle
Features
- Next generation prism sight with 3x magnification and 30mm objective lens, for lightning fast target acquisition out to 300 yards
- Features a glass prism optical system rather a refracting lens system like traditional scopes, allowing for better optical quality in a much smaller package.
- Unlike red dots, the reticle is visible with or without illumination, for a clean sight picture regardless of lighting or environment.
- Brand new single piece machined aluminum design, sturdier and more rigid than ever. 17 ounces in weight.
- All Monstrum products are backed by a full lifetime warranty
Brand: Monstrum
Color: Black
Style: DX1 Reticle
Sport: Hunting
Item Weight: 17 Ounces
Material: Aluminum,Glass
Magnification Maximum: 3 x
Objective Lens Diameter: 30 Millimeters
Magnification Minimum: 3 x
Compatible Devices: Rifle
Magnification Maximum: 3 x
Objective Lens Diameter: 30 Millimeters
Magnification Minimum: 3 x
Compatible Devices: Rifle
Mounting Type: Picatinny Mount
Night vision: No
Eye Relief: 88.9 Millimeters
Field Of View: 39.3 Feet
Reticle Type: Circle Dot
Item Weight: 17 Ounces
Material Type: Aluminum,Glass
Brand Name: Monstrum
Sport Type: Hunting
Model Name: P330-B
Manufacturer: Monstrum
UPC: 810088813603
Manufacturer Part Number: P330B-DX1
Color: Black
Product Style: DX1 Reticle
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 1 – Jun 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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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Reviewed in the United States on July 11, 2018 by Mitch
Very nice scope. I had to do some serious work on getting it sighted in.... it was VERY HIGH AND VERY LEFT But after that no complaints. The bottom bolts did however back out and get loose after 60 or so shots so I would recommend some lock tight or 2 step epoxy on them. Great visibility, no glare no fog very crisp. Only red No green but a very nice unit
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Reviewed in the United States on January 8, 2026 by Levi todd
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.
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Reviewed in the United States on January 18, 2024 by Steve Shamblin
Great item
Reviewed in the United States on March 17, 2026 by Garrett Holmes
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.
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Reviewed in the United States on June 28, 2020 by breeze90265
It looks good, has clear glass and the illuminated reticle is just fine in or outdoors for me. The biggest problem is the eye relief. I have a side mount on my AK47 and Magpul MOE furniture and either this has to be all the way at the back end of the mount which just looks wrong hanging over, or you have to rest your cheek on the top cover latch. I really wanted this to work because the setup looks great but the eye relief just makes it no good for my use. The AR guys may have better luck but I wouldn't bother on an AK. I was going to buy its brother the other P330 but that has the same eye relief so I guess I have to save real money and get something else. Shame, because in all other ways its a nice optic and a STEAL at the price.
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Reviewed in the United States on April 27, 2021 by D Scheer
Love these, got em on all of my AR platforms. perfect for 25 yard shooting, provide clear sight pictures, love the lighted reticle. these work just as good as the expensive ones for a fraction of the cost. the newer models only have red lighted reticles the older ones had a choice between red and green, i prefer green but you gotta take what's available.
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Reviewed in the United States on November 17, 2025 by Siskel Ebertson
BLUF: Don't buy this optic. Even $100 isn't worth it! Okay, so for the price, I wasn't expecting too much, and I got even less. I got this to put on a S&W Model 1854. 3x power, red and green reticle, I was good until it showed up. This optic IS NOT both red and green. It is only red. It has 10 brightness levels on the dial, but in real life, it has 2; super dim or kinda bright. When you turn the optic on, the circle on the reticle gets super blurry and, to me, seems to move. The dot does not stay a dot when it is turned on either. When I fired it up, on low, there are 3 dots. On bright, there's like 5. If you've ever turned on cursor trails for your mouse, that's what it looked like to me. Also, there is supposed to be a wrench to tighten the scope down. Well, you guessed it, no wrench. Now, with all that, if you are just looking for a 3x scope that you don't want it to be illuminated, this might work for you. It seemed secure on the Picatinny rail but I never even got to the range to test it out so I cannot tell you if it will loosen. There is no loctite on the screws for the adapter so you'd probably have to take the screws out and put it on yourself. I did try to get pictures of what I saw but the pictures were even worse so that would be useless.
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Reviewed in the United States on May 9, 2025 by Alfred J. O'Connor