Monstrum Lockdown Series Adjustable Height Picatinny Riser Mount with Quick Release | 3.5 inch

Excellent product. Worked perfectly for my application.

Two big thumbs up good for the price

The only reason I gave the installation 4 stars is because adjustment teeth are very small and it is hard to get them lined up across the way and then tightened up without them slipping. The quick release latch is a great idea and it works well. These guys are making a quality product and there's no reason to pay more just for a fancier brand name that does the same thing. My only suggestion is that they consider making fewer adjustment teeth that are larger and easier to align. But once you get it to the right height, you won't be adjusting it much.

Needed to raise my prism scope up a little. Found this riser and it worked perfectly. Raised my scope up and had enough length to give me the perfect eye relief. The quick release lever is a plus as it lets me switch between rifles easily. So far it has stayed put with no movement. Would recommend if you have a need for a riser mount.

I bought this for mounting an optic on a G2 Sub 2000. Being that the Sub folds in half, I wanted to keep that feature and still use an optic. There are far more expensive options out there but I could not justify paying nearly $100 for them. I like how this works it’s easy to adjust and put on and take off. I know not ideal to have to remove it to fold the weapon but there’s always the $100 option if you are hung up on that. I mounted my optic to this qd mount and have it adjusted to sight over my factory Kel-Tec sights. I have not brought it to the range as of yet but if my opinion changes I will update the review. I did mount a section of picatinny rail to the lower forward side of the stock to attach the optic to while it’s folded and it seems to work great.

This works exactly as intended and advertised. I'm going to have to agree with other comments, people that said it does not fit picatinny rail did not know how to adjust it. the quick release lever, is a lever, but it has a screw built in. the screw is turned, so that the quick release lever can be just barely closed. And there you go, perfect secure fit. the other screws to adjust the height of the mount obviously require loctite. they quickly came loose several times until I did that, which is of course expected and does not negatively reflect on the product.

Does what it should

Excellent products