Metal Bubble Level Anti Cant for 20mm Weave Picatinny Rifel Scope Leveling kit Mounts Sight with Wrench

Sturdy and well made. It is particularly useful when leveling the scope's cross hairs.

The level glass was a little small but for the money and it’s size it’s a good overall starting level for precision rifle shooting.

This is a neat object in theory, but I don’t know how well it works in field. It does work as a bubble level. but I don’t know if that means anything if your rail isn’t straight and how often do you have to bubble your gun at the range?

Great little tool to have. I shoot long distance precision and more often than not I end up shooting with this level installed on my rail. It's just easier for me to see when I'm behind the scope.

Review of - Mercu Metal Bubble Spirit Level Anti Cant for 30mm Weaver Picatinny Scope Leveling Kit - Mounts Sight with Wrench1 - This product is defective. It's design and sizing are defective. It isn't the correct width to fit a picatinny rail (see attached photo).This product has three components: 1) the largest part that contains the spirit level, 2) the small second piece to fit the opposite side of the rail, 3) a screw to hold the second part onto the first part. The problem is that the first part isn't long enough, i.e. long enough to fit the full width of a picatinny rail. Consequently, when the screw it tightened onto the smaller smaller piece, the smaller piece cants against the the screw and rail and cannot be made tight or secure. See the provided photograph.-It seems that numerous companies are selling what appears to be the identical, faulty, defective, product that is a complete waste of time and money. It doesn't seem like any of the other "brands" of these being sold on amazon are any different from this defective item. Whoever made this item in china didn't measure correctly and seems to have produced thousands of these levels that will never, ever, be able to fit a picatinny rail.-Note that many picatinny attached products don't try to use the approach this does. Those other products use a screw that fits all the way through the groove in the rail, rather than trying to attach to a rail tooth, which requires a precise fit that this product fails to achieve.-This thing is going to have to be returned, because there just isn't any way that it could be of any use at all. I never even tried to see of the - level - itself is actually true, because the product cannot be mounted into a rail, which is the primary prerequisite for its potential usefulness. This is sad because the machining and so forth isn't bad at all, but whoever made these failed to - measure twice - and beta test, before manufacturing scads of this things it seems. After a more thorough assessment of the reviews here, and of similar products on amazon, it is apparent, that all the various items like this being peddled on amazon are actually the same item, with the same - failed measurement - design flaw.

Obviously not going to be high quality for the price but usable

Really easy to mount on a picatini rail, I have it in 3 different rifles. Good thing to have there if your furniture is on the soft side, or using bipod on uneven surfaces, to sure gun is leveled.

I have no idea what others are receiving. What I got when I cheaped out on a reputable brand was a complete POS that:A: Doesn't fit my Picatinny rail, at all. The screw bottoms out just before it gets tight. Does this maker/seller have quality control, at all?B: The bubble's margin of error is HUGE. I'm not hanging a picture of my kid's 'masterpiece' crayon drawing. I'm trying to use this to zero a scope at 200yds. I need it level. 200yrds isn't much, manufacturer/seller. The error is unacceptable, and for the price, I should have known better.C: Maybe it's me, but the liquid inside seems way too viscous, and the latency between a reading and a leveling is too much to tolerate.Complete trash leveler.

Leveling equipment, sturdy build easy to use

je fais du tir de précision et cela me donne le niveau exact de la carabine, ensuite l'ajustement du scope est facile!.....petite merveille de bonne qualité ....

The level works OK but it is hard to install it on the rail as the mounting screw is very short. To install it on the Picatinny rail you have to completely separate both pieces. The mounting screw should be a bit longer to make installation easier.

the bubble sticks way outside the lines, making leveling impossible

Comparez à un niveau traditionnel il décale d'une demi bule