Monstrum Shrapnel Series Micro Red Dot Picatinny Base Mount

Quality item that gets the job done. Thin mount that doesn’t raise a red dot too high, if that’s what you’re looking to accomplish, which I was. Fit a Holosun 507k x2 perfectly. I do wish it had a dedicated recoil lug but haven’t found any like this that have them. I’ve been impressed by Monstrum products, I have purchased several of their items and they are all good to go. Highly recommended!

I use these to mount HoloSun HE507C-GR X2 “Green Dot” sights on several of my firearms that came with 1913 rails. Quality built product, perfect fit, and no issues thus far on any of the applications.

Works well. Hold sight sturdy

Very nice adapter to mount red dot sight to Picatinny rail. Profile was reasonably low and all hardware was included for mounting various thickness RDS - just add lock-tite.

Well made, fitment was good. Came with variety of size screws

This mount is alright. It fits rmr accurately however makes minimal contact with the receiver which is why I am giving it three stars. It will get the job done but no recoil lugs and a very small contact surface makes it a no from me

Gave it 4 stars cuz its cheap. The footprint does fit as stated, which is also for Deltapoint Pro and Romeo1Pro. However, none of the many hardware supplied is neither long enough for those optics, nor thick enough. Those two optics require 4mm screws. The screws supplied are 3mm. Which is another dilemma: the mount is for 3mm screws. I drilled and tapped the mount screw holes for the 4mm screws that came with my deltapoint. No biggie. Hold torque as well. I'm happy with it. I don't mind the work I had to do.

Construction feels well made.