Description
Quick Rail Reference. Proven Billet Construction.
The MK Machining ULP Billet Rail Mounted Level is a compact, Picatinny-mounted anti-cant level built for customers who want a quick, dependable reference without adding unnecessary bulk to their setup.
Machined from 6061 billet aluminum and finished with Type III hardcoat anodizing, the ULP combines lightweight durability with a proven low-profile design. Its compact housing takes up minimal rail space and fits beneath most optic setups when sufficient optic-to-rail clearance is available.
Clear, Responsive Vial Visibility
The open vial housing captures available light for a clear, easy-to-check reference from behind the optic while still providing protection around the vial.
A highly responsive vial settles quickly and remains easy to read, even in cold conditions. Its rail-mounted position provides a convenient, at-a-glance reference without requiring a clamp around the optic tube.
Simple Single-Bolt Installation
The ULP Rail Level mounts directly to a Picatinny rail using a single bolt for straightforward installation and repositioning. On setups with sufficient clearance, the level can be installed without removing the optic.
Position the level where it is easiest to view based on your available rail space and personal preference. During installation, verify that the optic is properly leveled to the rail before securing the level in place.
“Do I get a ULP or XLP Rail-mounted level?”
The ULP is MKM’s proven legacy billet level design, offering durable machined-aluminum construction, straightforward functionality, and strong overall value.
For customers seeking our newest and lowest-profile billet rail design with four-sided vial windowing, explore the XLP Rail Level Series.
Why do I need a Billet Rail-Mounted Level?
Just a few degrees of cant will cause considerable shot dispersion at longer ranges! If the scope is canted by only 2½ degrees, the bullet will impact .05 mils for every 100 meters in the direction of the cant. This means with only a 2½ degree cant and shot of of 1000 meters would be an impact of .5 mils. A small change can make a big difference and the MKM Ultra Low-Profile Billet Rail Level is the perfect solution.
But don’t just take our word for it. Here is a quote from Bryan Litz regarding Rifle Cant. Bryan Litz is the owner of Applied Ballistics and multiple time national and international competitive shooting champion.
As a general rule of thumb (for common cartridges) “a 1° Cant will produce five (5) inches of lateral displacement at 1000 yards. Thus, if you Cant your rifle just 8°, the POI would move 40″ from the center of the target, putting the shot off the edge of a 72″-wide target.” -Bryan Litz
source: https://www.accurateshooter.com/optics/canting-effect-on-point-of-impact/
Check out the rest of our billet levels here
Terry Purcell (verified owner) –
Very well made!
Federico F Paez JR (verified owner) –
This anti-cant level is so simple it is awesome. Stays in line of sight, can be mounted either side, does not stick out too far. And the price is just awesome! Put this on my Ruger RPR and looks like it was always on there. I like the scope mounted levels however some tend to block scope turrets. This is a simpler very effective option for me. If you set your scope level to begin with, this is a bolt on and go solution. I did verify level and it was spot on.
Jeff Bennet (verified owner) –
Nice piece of equipment, very well made low profile and easy to install.
Mike (verified owner) –
Nicely made and finished. The only issue I had was that the scope / rings / rail was a little too tight; the level is 0.250” where it passes under the scope; Turns out I had a couple thousandths less room. I milled 0.010” just above the rail area and it’s perfect. Maybe make it just a bit thinner?
Patrick Harris (verified owner) –
Well made, perfect alignment for staying on target while verifying level. Light, machining is perfect. What’s not to love? I’m buying 2 more for other rifles I own………..
J Scott Coile (verified owner) –
This is an excellent, easy to mount and easily viewed from rest level. Perfect machining. Easy to move from rifle to rifle. Well done.
Dan (verified owner) –
Very well made and fits nicely on my field and target rifle, right below and in front the scope focusing wheel. Perfect!
Jeff Nicolosi (verified owner) –
I ordered 3 of the rail mounted levels 2 for myself and gave one to a friend. They are very well made and nice to look at mounted on my Seekins Rifle. I mounted mine under a Nightforce NXS8- 4X32 with medium high rings. I mounted it forward of the side focus knob as any closer my eyes wouldn’t focus on it, the cost of getting a little older I guess. I would definitely recommend these to anyone and will be buying more in the future. Thanks for a great product.
Mike Hines (verified owner) –
I like it! I bought this for a long distance rifle but then realizes I could also use it to make sure my scopes are level. I put the MKM on the rail and use a second level on the scope to match things up. Quick and easy! I store the MKM in the grip of my long distance gun, with the correct wrench, so it isn’t damaged in transport but is readily available.
Andreas Walter (verified owner) –
After ordering a similar rail-mounted level from another manufacturer, I found that it was not actually level…
Received the MKM piece a few days ago. Very well made and most importantly – it reads level regardless of orientation.
Thank you for a quality product!
Kevin (verified owner) –
Not sure if I got one that was machined wrong or what but on a standard pic rail this level looks horrible the adjustment screw and holder plate don’t line up and are beveled it came scratched on one corner if I could take pictures I would.
Tyler Kemp –
Hi Kevin,
If you can use the internet you can definitely take a picture! Please email pictures to [email protected]
Dalton –
Best level for the money. Can’t go wrong with it. I’ve been using it on a bolt gun for 6+ months. It does everything I need it to and it doesn’t add much of any weight to the rifle. Will be buying more in the future.
jdquinn2 (verified owner) –
Quick shipping. But more importantly, coming from a machine shop, not some China stamp shop, my expectations may have been unrealistically high. WOW!!! (triple exclamation), this exceeded my expectations.
Precision work, exceptional finish, spot on!!! (another).Your precision rifle, high quality optics deserves this.
BRENT RASMUSSEN (verified owner) –
Superb quality! Easy viewing under normal lighting conditions. I wish MK would state what degree of cant the black lines represent? In other words, if the bubble is just touching the left or right line is that 1/2 degree of cant?