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Monstrum Low Profile Picatinny Anti-Cant Level Bubble

  • Based on 147 reviews
Condition: New
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$19.25 Why this price?
Save $54.95 was $74.20

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jun 12
Order within 17 hours and 59 seconds
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Features

  • Monstrum Level Bubble Products are built to check for proper vertical alignment of your rifle
  • Imperfect vertical alignment of your scope when shooting introduces scope cant error - horizontal drift of your shots due to cant - An anti-cant level bubble corrects for this issue, allowing you to quickly check for proper alignment of your rifle before each shot.
  • The level bubble attaches to your picatinny rail with a low profile design that slots in at the base of your of your rifle scope
  • Crafted from lightweight 6061 grade aluminum
  • All Monstrum optics and accessory products come with a lifetime guarantee

Brand: Monstrum


Item Weight: 0.63 Ounces


Material: Aluminum


Compatible Devices: Rifle


Mounting Type: Picatinny Mount


Night vision: No


Item Package Dimensions L x W x H: ‎2.32 x 1.89 x 0.67 inches


Package Weight: ‎0.02 Kilograms


Item Weight: ‎0.63 Ounces


Brand Name: ‎Monstrum


Material: ‎Aluminum


Manufacturer: ‎Monstrum


Part Number: ‎ZB109


Size: ‎30 mm


Date First Available: February 22, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good value for its price point!
Bubble is a bit difficult to see in low light due to the dark liquid in the vial. Overall it was well worth the money.
Reviewed in the United States on December 18, 2023 by Pellets damaged from shipping. Should have been shipped in a box rather than an envelope.

  • Works as it should
Easy to install. Doesnt take up much space. Surprisingly it is level. Seems to be well made. No issues.
Reviewed in the United States on November 9, 2023 by Jonathan D Blackmon

  • Seems decent for the money.
Nothing fancy but does the job. Fits on the last section of my pic rail right where I wanted it. Easy to come my scope a and see it. Helping in leveling the scope when I mounted it. I even verified it with the ones I use for mounting scopes, appears to be spot on.
Reviewed in the United States on September 15, 2023 by Tyler Young

  • Works as it should and seems well-made.
Works as it should and seems well-made. I'm not a Monstrum fan because Adam ate scopes that I bought, six had defective Parallex adjustment. I ended up buying an Arken scope and will avoid any Monstrum optical products
Reviewed in the United States on August 13, 2023 by Sanford S.

  • Nice
Low profile, accurate. Looks good.
Reviewed in the United States on October 2, 2023 by GunSmoke

  • Meh
First off, great service by Monstrum - no complaints there. The level is very visible and was accurate. The machining was very nice and the finish was very even. The hardware is cheap, as expected. What was uninspiring was the level itself was held in place by some sort of rubber cement which had bubbled at the surface - maybe due to heat in storage, I don't know. Might not have affected function in the long term, though I had my doubts about the hardware too, so I returned it, no problem. Bottom line: it's typical Chinese quality. I'd feel fine putting it on an airsoft gun or a budget build, but nothing that's going to see any real use. If you want a decent level at a low price, this exists, but it's also cheaper directly off Monstrum's website. ... show more
Reviewed in the United States on November 11, 2023 by RustyM92

  • A must-have for long range shooters
I have one of these mounted on each of my airguns. The low profile allows them to be mounted behind your scope and allows them to be easily visible with a quick glance when your rifle is shouldered. This is NOT the case when you try to use one of those levels that mount on your scope tube, where you have to find your target through the scope, move your head to the left or right to look at the level, adjust your cant so the gun so it's level, then try not to move while you position your had back to look through the scope again. ... show more
Reviewed in the United States on October 23, 2023 by Justin

  • Excellent Solution
An excellent and economical solution for the common problem of trying to level your scope on uneven surfaces.
Reviewed in the United States on December 26, 2023 by Chris

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