--- product_id: 4820142 title: "XTRM Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount" brand: "nightforce" price: "B/.244" currency: PAB in_stock: true reviews_count: 8 category: "Nightforce" url: https://www.desertcart.com.pa/products/4820142-xtrm-top-half-of-ring-with-bubble-level-4-6 store_origin: PA region: Panama --- # Precision leveling for ultimate shot accuracy Optional angle degree indicator for tactical adjustments 4 or 6 screw versions for secure mounting XTRM Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount **Brand:** nightforce **Price:** B/.244 **Availability:** βœ… In Stock ## Summary > 🎯 Level up your precision β€” never miss your mark with NightForce XTRM! ## Quick Answers - **What is this?** XTRM Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount by nightforce - **How much does it cost?** B/.244 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/4820142-xtrm-top-half-of-ring-with-bubble-level-4-6) ## Best For - nightforce enthusiasts ## Why This Product - Trusted nightforce brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Durable Aluminum Build:** Lightweight yet rugged aluminum construction designed to withstand the toughest field conditions. - β€’ **Seamless Compatibility:** Direct replacement for multiple NightForce 30mm rings including Unimount, Magmount, and Ultralite models. - β€’ **Customizable Mounting Options:** Choose between 4 or 6 screw configurations to match your NightForce rings for rock-solid stability. - β€’ **Angle Degree Indicator Upgrade:** Optional integral angle mount lets you measure cant angles on the flyβ€”critical for long-range pros. - β€’ **Precision-Engineered Bubble Level:** Integrated bubble level ensures your rifle is perfectly leveled for unmatched shot consistency. ## Overview The NightForce XTRM 30mm Top Half Ring with Bubble Level is a precision-engineered replacement ring compatible with multiple NightForce mounts. Featuring an integrated bubble level and optional angle degree indicator, it offers shooters enhanced accuracy and tactical versatility. Available in 4 or 6 screw versions, this lightweight aluminum accessory ensures secure mounting and reliable performance, trusted by professionals and competitors since 1992. ## Description NightForce X-Treme Duty 30mm Top Ring Bubble Level This top half of ring replaces the top ring of our 30mm Unimount, Direct Mount, Magmount and Ultralite rings and our 30mm steel rings. Available with integral Angle Degree Indicator mount or as top ring/bubble level only. Available in both four-screw and six-screw versions. The Bubble Level with integral ADI mount (A129) can be turned either way for left- or right-handed actions. NOTE - Clean all mating surfaces thoroughly before mounting; Use a torque wrench and do not exceed recommended torque values: Cap Screws - 25 in lb, MultiMount Rail Screws - 25 in lb. Since 1992, Nightforce has been creating the finest scopes that are used by professionals, hunters, and competitors. NightForce also provides a wide range of high-quality optics accessories Review: Great item, correctly pictured. - The level is very well made and is easy to install in place of the previous top half of the ring. I've used mine for just short of two months now with about 500 rounds downrange, and it's worked as advertised, with no breakage and no tendency for the bubble to split into multiple bubbles. I was concerned that it may be difficult to see with middle aged eyes when mounted on the rear ring (and it would be hard to see if mounted on the front ring with the elevation turret in front of the level). However that has not been the case. It's easy to look up slightly and ensure the bubble is centered when setting up the shot. the level is blurred slightly with my middle age accommodation issues, but the lines are still visible and it's obvious whether the bubble is centered or not. That's a good thing as this design is much less exposed than a level that is offset to one side of the scope (but could be mounted forward of the turret). Envisioning a line between the rear of the eyepiece and the top of the turret makes it clear that dropping the rifle in a manner that would succeed in breaking the level, would create far greater problems for you than a broken sight glass in the level. If you want to get full utility out of it, care needs to taken to ensure that the ring half/bubble level is mounted so that it is level when the crosshairs are level. If you've already properly leveled the scope in the rings, you just need to verify the ring half is level when the vertical crosshair is parallel to a plumb line suspended far enough in front of the scope to see at low magnification, and snug the screws up for the ring half while maintaining a centered bubble. If not, you'll want to level the rifle, and then while maintaining a level rifle, level the scope in the rings with the plumb line and snug up the front ring to secure the scope in place, before leveling the rear ring half with the level and snugging it up as well. Then torque all 8 ring screws evenly and recheck that everything is level. This presumes a high quality scope where the reticle and scope adjustments are in alignment with each other. If there is a downside it's in the $78 purchase price for a bubble level ring half. But then if you're buying one you've already ponied up $150 or more for a set of Nightforce rings and should be used to the NF sticker shock by now. As for some of the negative reviews: I noted that the level pictured was the one with the angle indicator mount, not the basic model that was discussed in the text. Consequently, I was able to correctly determine I was ordering the basic model that I wanted. I guess that illustrates the value of actually reading the description to overcome a mistake by the person posting the picture on the website. To be fair to both sides, the incorrect picture was confusing, and the picture on the website is now correct, showing the basic bubble level with no angle indicator or mount for the angle indictor. In any case, the picture now matches the item and less actual reading is required. None of that should however reflect negatively on what is an excellent item. Review: Works - Good quality, easy to install. Decent value for money. ## Features - TOP RING WITH LEVEL - This XTRM Top Half of Ring With Level replaces the top ring of 30mm Unimount, Direct Mount, Magmount and Ultralite rings and NightForce's 30mm steel rings - INTEGRATED BUBBLE LEVEL - Integrated bubble level allows to level your gun for maximum accuracy that is necessary for precise shooting - OPTIONS - Available with integral Angle Degree Indicator mount or as top ring with bubble level only; Available in both four-screw and six-screw versions - NOTE - Clean all mating surfaces thoroughly before mounting; Use a torque wrench and do not exceed recommended torque values: Cap Screws - 25 in lb, MultiMount Rail Screws - 25 in lb - NIGHTFORCE - Since 1992, Nightforce has been creating the finest scopes that are used by professionals, hunters, and competitors; NightForce also provides a wide range of high-quality optics accessories ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004FXCX6C | | Best Sellers Rank | #129,810 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #208 in Airsoft Gun Scope Mounts #16,808 in Hunting Equipment | | Brand Name | Nightforce | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (54) | | Included Components | item | | Item Type Name | Optics Rings | | Item Weight | 0.09 Ounces | | Manufacturer | Nightforce Optics | | Material Type | Aluminum | | Operation Mode | Manual | | Style Name | 4 Screw | | UPC | 847362003207 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Nightforce - **Color:** Black - **Item Weight:** 0.09 Ounces - **Material:** Aluminum - **Style:** 4 Screw ## Images ![XTRM Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount - Image 1](https://m.media-amazon.com/images/I/41CY53Oji5S.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great item, correctly pictured. *by L***C on October 28, 2015* The level is very well made and is easy to install in place of the previous top half of the ring. I've used mine for just short of two months now with about 500 rounds downrange, and it's worked as advertised, with no breakage and no tendency for the bubble to split into multiple bubbles. I was concerned that it may be difficult to see with middle aged eyes when mounted on the rear ring (and it would be hard to see if mounted on the front ring with the elevation turret in front of the level). However that has not been the case. It's easy to look up slightly and ensure the bubble is centered when setting up the shot. the level is blurred slightly with my middle age accommodation issues, but the lines are still visible and it's obvious whether the bubble is centered or not. That's a good thing as this design is much less exposed than a level that is offset to one side of the scope (but could be mounted forward of the turret). Envisioning a line between the rear of the eyepiece and the top of the turret makes it clear that dropping the rifle in a manner that would succeed in breaking the level, would create far greater problems for you than a broken sight glass in the level. If you want to get full utility out of it, care needs to taken to ensure that the ring half/bubble level is mounted so that it is level when the crosshairs are level. If you've already properly leveled the scope in the rings, you just need to verify the ring half is level when the vertical crosshair is parallel to a plumb line suspended far enough in front of the scope to see at low magnification, and snug the screws up for the ring half while maintaining a centered bubble. If not, you'll want to level the rifle, and then while maintaining a level rifle, level the scope in the rings with the plumb line and snug up the front ring to secure the scope in place, before leveling the rear ring half with the level and snugging it up as well. Then torque all 8 ring screws evenly and recheck that everything is level. This presumes a high quality scope where the reticle and scope adjustments are in alignment with each other. If there is a downside it's in the $78 purchase price for a bubble level ring half. But then if you're buying one you've already ponied up $150 or more for a set of Nightforce rings and should be used to the NF sticker shock by now. As for some of the negative reviews: I noted that the level pictured was the one with the angle indicator mount, not the basic model that was discussed in the text. Consequently, I was able to correctly determine I was ordering the basic model that I wanted. I guess that illustrates the value of actually reading the description to overcome a mistake by the person posting the picture on the website. To be fair to both sides, the incorrect picture was confusing, and the picture on the website is now correct, showing the basic bubble level with no angle indicator or mount for the angle indictor. In any case, the picture now matches the item and less actual reading is required. None of that should however reflect negatively on what is an excellent item. ### ⭐⭐⭐⭐⭐ Works *by S***A on November 2, 2025* Good quality, easy to install. Decent value for money. ### ⭐⭐⭐⭐⭐ High quality - a little pricey. *by H***S on June 12, 2025* Nightforce is high end stuff. A little pricey, but good quality. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.pa/products/4820142-xtrm-top-half-of-ring-with-bubble-level-4-6](https://www.desertcart.com.pa/products/4820142-xtrm-top-half-of-ring-with-bubble-level-4-6) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-05-19*