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Questions & Answers
Will this mount need the lapping as I use on two ring mounts? Expert Answer

The Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount can be lapped like a normal set of rings.

by Hunter, Gear Expert, November 2, 2022
what is the height of this mount Expert Answer

centerline is 1.63" while the profile height is 1.13"

by Tom B, Gear Expert, November 18, 2021
Customer Reviews
Helpful Positive Review
Solid well made by Ken, January 15, 2025
Wanted a mount for my new AR. Didnt want to spend alot for it. read the reviews and bought this one. I find it to be well machined and very solid. Mounted a variable 1 1/2 to 4 1/2 power scope on top of a 7.62x39 AR. Over 200 rounds fired so fa...
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1/1 found this helpful
Helpful Positive Review
Decent Scope Mount for the Price! by N0rthsideDonutz, Verified Owner, December 22, 2024
Needed a new cantilever for my Grendel, picked this one because of the price - after torquing everything down and shooting the rifle, it works just fine. Holds zero, decently made. Everything works great.
1/1 found this helpful
Most Recent Reviews
Good optic by James Dean, Verified Owner, February 27, 2026
Nice mount. Has held steady for me! Most shooters won’t be able to tell the difference between this mount and a high dollar mount.
Most Recent Reviews
Monstrum mount by Bj, Verified Owner, January 29, 2026
These mounts fit well and are of good quality and comparable to the high priced mounts that I have. This one is on a ruger precision 17 hmr rifel.
Most Recent Reviews
Cmmg lower pins n springs kit by Smac, Verified Owner, July 7, 2024
It's a great set for the money. You could never have 2 many springs and detents.
0/1 found this helpful
Most Recent Reviews
Worked great by T Hit, Verified Owner, January 5, 2025
Good value. Built well. Paired with a Trybe lpvo. For $150 total for both. It’s a screaming deal and looks good on a 10.5” 300blk.
Read All 12 Reviews
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Product Info for Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount

When you've got your guns and gear strapped to your back, every last once matters.That's why we've taken our best-selling line of lightweight scope mounts and made them even lighter! With a newly designed hollowed out 6061 grade aluminum frame, the Monstrum H-Series scope mounts shave precious ounces off your pack without sacrificing durability or performance.Weighing in at 4.3 ounces, the MH255/MH305 Hollow Frame Scope Mount is comparable in weight to a pair of scope rings while maintaining the added rigidity and convenience of a one piece mount. Available for both standard 1 inch and 30 mm tube diameter rifle scopes, it mounts securely to standard Picatinny rail platforms. The scope mount uses hardened steel Torx mounting hardware to prevent stripping of the bolts.image

Specifications for Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount:

Manufacturer: Monstrum
Gun Rail: Picatinny
Fabric/Material: Aluminum
Offset: 2 in
Gun Make: AR Platform
Color: Black
Length: 5.75 in
Gun Model: AR-15
Condition: New
Hand: Ambidextrous
Gun Type: Rifle
Quantity: 1

Package Contents:

  • Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount

Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount Orderable Models

List of Orderable Models

  • Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 30mm, Black, MH300-B , Code: MON-SCM-HOLL-MH300-B
  • Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 1in, Black, MH250-B , Code: MON-SCM-HOLL-MH250-B

Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 30mm, Flat Dark Earth, MH300-T , MPN: MH300-T-EDEMO , Code: MON-SCM-HOLL-MH300-T-EDEMO-SC-C
  • USED Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 1in, Black, MH250-B, EDEMO1, Used, Condition Like New , MPN: MH250-B-EDEMO1 , Code: MON-SCM-HOLL-MH250-B-EDEMO1
  • Open Box, Dealer Demo, Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 1in, Flat Dark Earth, MH250-T , MPN: MH250-T-DMO , Code: MON-SCM-HOLL-MH250-T-DMO
  • Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 1in, Flat Dark Earth, MH250-T , MPN: MH250-T , UPC: 850004377444 , Code: MON-SCM-HOLL-MH250-T
  • Monstrum H-Series Hollow Frame Offset Cantilever Picatinny Scope Mount, 30mm, Flat Dark Earth, MH300-T , Code: MON-SCM-HOLL-MH300-T
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