Monstrum Lockdown Series Adjustable Height Picatinny Riser Mount with Quick Release | 2.5 inch

This Picatinny riser mount is well-built and provides the perfect height adjustment for my optic setup. The 2.5 inch height works great for achieving proper eye level. The quick release mechanism is solid and locks securely without any wobble. Easy to install and remove when needed. Build quality is excellent with durable materials. Holds zero consistently and doesn't shift under use. Great value for a quality riser mount. Highly recommend for anyone needing to adjust optic height on their setup.

Only needed a riser but having some adjustment seems like a plus. Need to raise a red dot a bit on a Kel2K. Seems well made. Time will tell how sturdy it is.

Well made, easy to adjust. Doesn't have as much height adjustability as expected - at lowest setting, it raised my red dot about 1/10" above the stock mount. Still usable but puts the irons a bit lower in the field of view. Most important, it returns to zero precisely on re-mounting. Tested it several times after sighting in, and it consistently hit point of aim at 40m. Sweet spot for the base screw is 18-20 in. lbs. Any tighter, and the release lever gets very difficult to manipulate with fingers. Any looser probably isn't secure enough.

I received this in good time and good condition. I do have to address the comments regarding its ability to stay on/tight. To the untrained, adjusting the Quick Disconnect tension might not be readily apparent. It needs to be made with the nut and made in small increments. The tension adjustment is achieved by the nut opposite the latch. It needs to be tightened in increments of 1/8 turn or less. When properly adjusted, the latch will begin to close and then at just the point where it seems like it won't close any more, the latch will suddenly snap closed. You have to work up to this situation slowly. It will be obvious to the user where this occurs - At that point, there will be NO movement in the mount/rail at all. The point of "Creeping up" on the correct tension is that If you go too far, you risk breaking off one of the latch cam ears. Note: The inside lip of the nut that bears on the rail clamp is serrated like a lock washer. Make sure the clamp is completely open before turning the nut after the initial installation has been performed. If there is any pressure on the nut, then turning it will be VERY difficult and you WILL score the face of the rail clamp. 1] To start, remove any sight on the mount, loosen latch and then the the nut all the way so you can drop the mount onto the rail. 2] Set the latch to its closed position. The mount will still be loose on the rail. 3] Using your fingers, compress the latch & mount clamps on the rail until the mount clamps are just gripping the rails. While clamped, tighten the nut finger tight. The mount should now stay on the rails with a little movement. It will still be loose but now secure to the point where it's not falling off. 4] Now comes the iteration part: Release the clamp, hold the clamps to the rail and tighten the nut 1/8 turn. Now close the clamp and note that it easily closes. Repeat this "Unlatch-tighten nut-latch" process. As you do so, the tension will get greater and greater until you get to that point where the clamp just barely "Comes over the hill", it snaps closed, and the mount will be securely attached to the rail. Using Blue, non-permanent Loctite (#242) , should keep the tension right where you want it . I hope this helps

First thing that I loved right away was that all parts are metal, no polymer based materials. At first I thought the adjustable riser system was a bit odd, but considering that I got 2 rails with the aim at creating a quick detach system for rifle scopes, I can easily see this coming in use with scopes that have larger lenses which would obviously require more elevated height to accommodate for them. SLIGHTLY disappointed in the system that tightens down the lever to the rail, but I'm sure with a little removable Loctight I can keep it set long term and not have to hassle with the adjustments anymore.

Very happy first time customer with Monstrum Tactical and I am very pleased with my purchase! I mounted this adjustable riser mount to my rifle and I could not be any happier! The riser mount is very well made and the quaility of this riser mount is second none! The quick release is a very nice option and is very sturdy when locked down and it will not move or ever come loose. The adjustable riser is also a very nice option to have if I decide to purchase more scopes in the future and need to adjust the height of the riser to meet my needs. Highly satisfied and I will be making more purchases with Monstrum Tactical and I highly recommend them to anyone looking to upgrade any firearm!

easy to install and the quick release makes it easy to remove if my optic fails, the increased height for my optic makes is so much more comfortable to shoot

This thing is made very well! I have a green dot sight on it, mounted to a KelTec Sub 2K. The Quick Detach feature makes it easy to flip the sight to the bottom rail when folding the gun up (Sub2K). I sighted in my red dot, and took the riser mount on and off several times, and the sight remained true... I like the Riser feature of the unit. it allows me to use it without taking the stock sights off my gun. Would definitely buy again. I am thinking of mounting a 5x scope to one, that I can switch out on my gun.

Arrived fast and exactly as described. It was machined much better than I thought and am impressed.

We needed to bump up the sight an inch to make it more comfortable. This was exactly what we needed. Arrived promptly and exactly as described. Very happy with the product and the seller :)

One screw stripped easily... not impressed