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Monstrum G3 3-18x50 First Focal Plane FFP Rifle Scope with Illuminated MOA Reticle and Parallax Adjustment

  • Based on 347 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, May 18
Order within 20 hours and 11 minutes
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Color: Flat Dark Earth


Features

  • High performance tactical rifle scope with 3-18x magnification for mid to long distance shooting out to 1000+ yards
  • Functionally designed first focal plane MOA reticle, with easy-to-read ranging information that remains constant regardless of magnification, for faster range estimation and holdover correction
  • Equipped with a parallax adjustment dial that allows for sharper focus of the target image, elimination of parallax, and range estimation
  • Inline dial controlled reticle illumination with multiple brightness intensities, for better reticle visibility in low light environments
  • Package also includes set of high profile picatinny scope rings, a detachable sunshade, a set of spring loaded flip-up lens covers, and one CR2032 3V battery

Brand: Monstrum


Color: Flat Dark Earth


Style: Heavy Duty


Sport: Hunting


Item Weight: 3.7 Pounds


Material: 6061 Aircraft Grade Aluminum


Magnification Maximum: 18 x


Magnification Minimum: 3 x


Compatible Devices: Rifle


Mounting Type: Picatinny Mount


Brand: ‎Monstrum


Color: ‎Flat Dark Earth


Style: ‎Heavy Duty


Sport: ‎Hunting


Item Weight: ‎3.7 Pounds


Material: ‎6061 Aircraft Grade Aluminum


Magnification Maximum: ‎18 x


Magnification Minimum: ‎3 x


Compatible Devices: ‎Rifle


Mounting Type: ‎Picatinny Mount


Night vision: ‎No


Item Package Dimensions L x W x H: ‎15.67 x 6.22 x 3.5 inches


Package Weight: ‎1.66 Kilograms


Brand Name: ‎Monstrum


Warranty Description: ‎Full Lifetime Warranty


Manufacturer: ‎Monstrum


Part Number: ‎G3F31850-FDE


Included Components: ‎G3 3-18x50 FFP Scope, 30mm High Profile Scope Rings, 1x CR2032A Battery, Lens Cleaning Cloth, Spring Loaded Flip-up Lens Covers, Sunshade


Date First Available: October 2, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 18

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.

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Top Amazon Reviews


  • Follow up of last review.
Color: Flat Dark Earth
Heavy heavy..... it's a great scope but after a day at the range the weight gets to me.
Reviewed in the United States on April 17, 2024 by Knuckle Dragger

  • Great scope
Color: Black
I purchased this scope to give it a try. The price was too hard to pass up for a ffp scope with brass internals and all the other features. I was surprised with the clarity of the optic, it tracks very well, holds zero, and the reticle is easy to see at all magnification levels. I did notice that when you get to the top of the magnification level, the eye box can be a little finicky. It can be a bit harder to get the right angle to see through to get the sight picture. You just have to take your time and get lined up behind the scope. I’ve seen other people complain about the center dot when at top magnification. At top magnification, the center dot will match a one inch circle on the target at 100 yards. This scope is on a hunting rifle, so this doesn’t bother me. I also had no issues taking shots out at further distances than 100 yards. I think this scope is a good value. I’m happy I purchased it. It will serve its purpose perfectly for me. ... show more
Reviewed in the United States on February 21, 2023 by Josh Freed

  • You can not beat it for the money
Color: Black
A bit in the heavy side and the optic is a bit large but the picture is bright and clear up to around 10x then becomes a bit challenging to line up. Repeatably accurate and the full zoom is handy for spotting hits. Overall a very satisfying purchase
Reviewed in the United States on November 9, 2023 by Jackie Vero

  • Love it!
Color: Flat Dark Earth
By far the best scope I own. The glass clarity could be better especially at 3x but the clarity is the same at 3 as is at 18 power so I can't really complain since it's consistent. Very stable scope and holds 0 even when being knocked around or dropped. Love the color scheme since it matches my gauntlet 2 with the coyote tan and black look. Lots of goodies included in the box. Comes nicely packaged, so nice that I refuse to throw away the box it came in. The clicks on the turrets are audible and crisp, the parallax is a great addition but in the heat of the moment you might accidentally turn the wrong cap and accidentally unscrew the cap to the battery which is on the outside of the parallax. Takes some getting used to but nothing that makes me want to return it. Nice length and the weight on it isn't bad either. The reticle does increase in size as you zoom in and the dot will get very large over the target if you're completely zoomed in but it's still manages to put the shot where you placed it. The light up function is good but the brightness from high to low doesn't vary that much when going from high brightness to low. All in all I would definitely buy it again. ... show more
Reviewed in the United States on June 16, 2022 by AVERY

  • Perfect
Color: Flat Dark Earth
Great scope
Reviewed in the United States on April 26, 2024 by Travis Anderson

  • Almost perfect... but one fatal flaw.
Color: Black
This scope is almost a dream come true with its incredible affordability, durable build, and features usually only seen in scopes $500+ ; however, the center reticle ruined the whole package for me. The scope works great up to about 9x and then beyond that the center of the reticle becomes so large that at 200-300 yards the reticle is bigger than anything you would want to hunt. This seems like something monstrum could easily fix in future models... but as for this one I will have to return it and continue my search for a quality scope that fits all of my needs. ... show more
Reviewed in the United States on January 4, 2024 by Jon Winters

  • Sometimes you get more than you pay for
Color: Flat Dark Earth
I have only had this scope for $ days, but, I was able to Range site in Scope Saturday. I watched a YouTube.com claiming that this was a lot of extras, in a low budget high powered scope. He was right. I have never owned a scope priced over #1,400. I can clearly state that the Quality of glass is excellent, along with the clear sharp MOA reticle. The turret Clicks are very soft and quite, not sharp and definite, as I like. The illumination of the reticle was surprising, the red illumination was visible in full sunlight throughout my Range day, I have it mounted on an AR-15 delivering 300 AAC. Only9 shots needed to zero. I had a little problem bringing the target in clear focus and I have seen reviews that state the same effect. I will be trying again evaluate this further. Another surprising features is the eye relief. Small, but decent manual states eye relief at @4". Take that as a conservative estimate, mine is 4 1/2" I do not own a scope with such an eye relief spread. This gave me more prereferral vision, but, a Clear, defined optical sight picture. the scope featured offerings only found on $500 and up scopes. I highly recommend this scope for an entry level shooter or hunter, or for any shooter looking for a quality inexpensive scope. ... show more
Reviewed in the United States on November 29, 2020 by Joe D

  • customer service is the worst...
Color: Black
customer service is the worst... I have written two letters to ask my questions WITHOUT answers and this is what I wrote, if anyone has an answer please give me your experience on the scope To whom it may concern: Hi... "Monstrum G3 3-18x50 First Focal Plane FFP Rifle Scope with Illuminated MOA Reticle and Parallax Adjustment" bought this scope on 02/07/23 on Amazon question (I'm very confused) I use the Strelock Pro app to execute my shots with my rifle and the reading it gives me when I adjust it with the turrets IS accurate, Example: if it asks for 18 MOA the impact is perfect... BUT when I use the HOLD OVER the 18 MOA the pellet or Slug goes very high. I have to lower the Hold Over to 9 MOA (exactly half) to make an impact. I did tests at various distances in Hold Over and what the streclosk APP asks for, in turrets is accurate, but I have to adjust the hold Over to half exactly, this means that each ten (10) MOA in the reticle is twice the value specified with the scope, it took me a long time to discover this matter. My question is: what am I doing wrong, or what do I not understand? Is there any explanation for this matter? Note: I have another scope mounted on an FX pantera 700mm Element Optics Helix 6-24x50 FFP and the readings I put on the turrets are the same as what I can use if I use "Hold Over" ... show more
Reviewed in the United States on September 13, 2023 by Ramon Cito

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