---
product_id: 4820142
title: "NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount"
brand: "nightforce"
price: "C$2469"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/4820142-nightforce-xtrm-30mm-top-half-of-ring-with-bubble-level
store_origin: NI
region: Nicaragua
---

# Precision leveling for ultimate shot accuracy Optional angle degree indicator for tactical adjustments 4 or 6 screw versions for secure mounting NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount

**Brand:** nightforce
**Price:** C$2469
**Availability:** ✅ In Stock

## Summary

> 🎯 Level up your precision — never miss your mark with NightForce XTRM!

## Quick Answers

- **What is this?** NIGHTFORCE XTRM 30mm 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?** C$2469 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/4820142-nightforce-xtrm-30mm-top-half-of-ring-with-bubble-level)

## 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

- • **Durable Aluminum Build:** Crafted from premium aluminum, this top ring half offers lightweight strength that withstands rugged field conditions.
- • **Seamless Compatibility:** Designed to replace top halves of 30mm Unimount, Direct Mount, Magmount, and Ultralite rings—perfect fit guaranteed.
- • **Customizable Mounting Options:** Choose between 4 or 6 screw configurations to match your NightForce rings for rock-solid stability under recoil.
- • **Angle Degree Indicator Available:** Upgrade with an optional angle degree mount to measure cant and maintain tactical edge in dynamic environments.
- • **Precision-Engineered Bubble Level:** Integrated bubble level ensures your rifle is perfectly leveled for unmatched shooting accuracy every time.

## Overview

The NightForce XTRM 30mm Top Half of Ring with Bubble Level is a precision accessory designed to replace the top ring on various NightForce 30mm mounts. Featuring an integrated bubble level for perfect rifle alignment, it comes in 4 or 6 screw versions and offers an optional angle degree indicator mount for advanced cant measurement. Built from durable aluminum, it ensures secure, stable mounting and enhances shooting accuracy for professionals, hunters, and competitive marksmen.

## 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 | #156,032 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #340 in Airsoft Gun Scope Mounts #23,249 in Hunting Equipment |
| Brand | Nightforce |
| Brand Name | Nightforce |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (67) |
| Date First Available | December 11, 2010 |
| Included Components | item |
| Item Dimensions LxWxH | 3.8 x 2.4 x 2.3 inches |
| Item Package Dimensions L x W x H | 4.53 x 4.49 x 1.14 inches |
| Item Weight | 0.09 Ounces |
| Manufacturer | Nightforce Optics |
| Material | Aluminum |
| Model Name | XTRM 30mm Top Half of Ring With Bubble Level |
| Number of Items | 1 |
| Operation Mode | Manual |
| Package Weight | 0.04 Kilograms |
| Part Number | A128 |
| Sport Type | Hunting |
| Style | 4 Screw |
| Suggested Users | unisex-adult |
| UPC | 847362003207 |

## Product Details

- **Brand:** Nightforce
- **Color:** Black
- **Item Weight:** 0.09 Ounces
- **Material:** Aluminum
- **Style:** 4 Screw

## Images

![NIGHTFORCE XTRM 30mm 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/31e2nL1mrKS.jpg)
![NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount - Image 2](https://m.media-amazon.com/images/I/41CY53Oji5S.jpg)
![NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount - Image 3](https://m.media-amazon.com/images/I/41K30KpMu2S.jpg)
![NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount - Image 4](https://m.media-amazon.com/images/I/41X4GTT1bAS.jpg)
![NIGHTFORCE XTRM 30mm Top Half of Ring with Bubble Level - 4 or 6 Screw Versions - Available with Angle Degree Indicator Mount - Image 5](https://m.media-amazon.com/images/I/41ZDzkWx9kS.jpg)

## 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.

### ⭐⭐⭐⭐⭐ Accurate level.
*by J***Z on October 3, 2025*

Great upgrade for Nightforce rings to prevent cant. Bubble is accurate compared to 2 other levels and plumb.

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-23*