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🔭 Elevate your aim with the Ghost G3—where speed meets precision in every flip!
The Monstrum Ghost G3 3X Micro Magnifier is a compact, lightweight aluminum optic accessory featuring a 3x magnification and a flip-to-side mount for rapid switching between magnified and standard red dot views. With 2.5-3 inches of eye relief and an adjustable diopter, it offers comfortable, precise targeting. Compatible with Monstrum Ghost and similar 1x20 red dots, it’s engineered for seamless integration and reliable zero retention during use.


















| ASIN | B0CW7D6QX6 |
| Best Sellers Rank | #139,802 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #337 in Gun Sights |
| Brand | Monstrum |
| Brand Name | Monstrum |
| Color | Black |
| Compatible Devices | Magnifier |
| Customer Reviews | 4.2 out of 5 stars 107 Reviews |
| Eye Relief | 6.4 centimeters |
| Item Dimensions L x W x H | 3.5"L x 1.55"W x 3.5"H |
| Item Display Weight | 311 gravity |
| Item Weight | 11 ounces |
| Magnification Maximum | 3 |
| Magnification Minimum | 3 x |
| Manufacturer | Monstrum |
| Manufacturer Part Number | PG3XB-G3 |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Name | Ghost G3 |
| Mounting Type | Flip-to-Side Mount |
| Number of Items | 1 |
| Product Dimensions | 3.5"L x 1.55"W x 3.5"H |
| Sport | Target Shooting |
| Sport Type | Target Shooting |
| Thread Type | 1/32" UNC |
| UPC | 810088816420 |
| Unit Count | 1 Count |
T**Y
Great for the money
I dont know if people got a bad one or not but this is so decent im ordering two. Why you ask? It blows my SIG juliet 5x out the water and even my vortex 3x and thats hard for me to swallow because its cheaper. I like it for many reasons. My first is NO push button to flip to the side (SIG you do) which transitioning to no mag to no mag is super quick just pull or push out the way and it stays there. It also has amazing eye relief.. seriously. I can get about 4 inches off this thing and have a clear full sight picture instead of having my eyeball into the glass like my other two, that alone is a worth the buy. The glass is fine, adjustments are easy and the focus works very well. Is it the best out there no, but i actually prefer this one over a few i have and thats why im writing a review. Its super small in size and not alot of weight which everyone likes. For the record i have it behind a Holosun 510C with 1/3 cowitness mount and it works perfect no blur or reticle dysfunction. I recommend.
E**S
Worth it!
Excellent magnifier for the money. Eye relief isn’t amazing, but that’s par for the course with others as well. Glass is great for what you pay and it holds zero all day at the range. Also easy to mount just wish it had a quick detach.
K**H
The best magnifier for your AR!
Excellent product for the price, fit and finish is excellent. large reticle is clear and eye relief is really good. I highly recommend this product compared to other brands like Sig, or Halosun that cost way more money. Windage and elevation knobs work perfect and I like how they are protected by the screw-on caps...Nice touch! Only reason I gave 4 stars is because it didn't come with rubber protective covers for the lenses.
D**3
Very nice magnifier
the magnifier came sealed in a plastic bag. i was surprised there wasn't more filler to protect the magnifier inside the box but it was fine. It was easy to install. It looks good and seems to be well made regardless of price. Most importantly, the Monstrum Ghost G3 3X Micro Magnifier aligned perfectly with my Vortex Sparc Solar Red Dot. Eye relief is okay for me and sight picture is nice and clear.
N**S
Good value garbage packaging.
I picked this up to make using my red dot at distance easier. The package arrived, and I was surprised to see there was no cardboard box or foam. The plastic bag had allowed the magnifier to become chipped and scratched. Installation and alignment were simple. Magnification is very nice and the glass is cleaer than I expected at this price point. The latch is sturdy and does not allow any unwanted movement. It does sit slightly higher than my Sparc ar, but after alignment it was not an issue. Eye relief has not been an issue. I had no issues at my original cheek weld location, or when adjusting the stock in when running drills. Overall a positive experience, but the poor package quality and lack of documentation should be noted. Update: I just completed a training course, and it was raining the entire time. Everything was inside of 50 yards, so I didn't need the magnifier. When I arrived home and started cleaning the gun, the magnifier is completely blocked by internal moisture. As long as it drys out this isn't a huge deal, but just keep this in mind if you are looking at this item.
J**N
Good
Works how you need it to. Good value.
G**R
Reviews about eye relief scared me at first
The eye relief is amazing on this thing. Let me start by saying that I’ve got holosun, vortex, Juliet, and primary arms magnifiers to compare this to. At the price point, this is probably the best one. The others have slightly better glass…maybe. So the reviews stating this thing has terrible eye relief may actually be because the person is used to being a lot closer to the magnifier. All my other more expensive magnifiers require being somewhat close to get a good eye box. This one actually REQUIRES you to be at least 2”-3” away to get a good eye box. I kept having to mount it further away to get a good picture, which I actually prefer, it was just surprising. Its eye box is great, its focal point is just further back than normal. Glad I took the chance on it. I wondered how the 4x version of this had better reviews stating it had “great eye relief”. I figured there’s no way a lower magnification of the same product would have WORSE eye relief. From about 2” - 3.5” the eye box is perfect.
J**O
Good magnifier
No super long term review, but for the short term has worked well and is easy to mount and adapt to your red dots hight /zero with the adjustment turrets . Also has good eye relief and is relatively crisp .
S**E
Great magnifier
Sits slightly higher than my sig red dot, but it doesn't matter at all. Works excellent 👍👍
D**Z
Budget friendly but premium quality!
love it! has a good weight to it. solid construction, clear glass, but much more affordable than 'established brands'! also, to add icing on the cake, it has lifetime warranty as well. love it!
A**N
Seems like a decent deal
Too high for my Sig red dot, but it actually still works with it. Just doesn’t look as great. Very clear picture and decent eye relief.
Trustpilot
3 weeks ago
2 months ago