The Nightforce X-Treme Duty accessories offer solutions for those pushing their equipment to the limit. With rings and one piece mounts constructed of aluminum and titanium, and bases constructed of steel, these accessories are ready for a lifetime of service on even the heaviest of recoiling rifles. Available in 30mm and 34mm.
| Part Number | Description |
| A128 | Top Half of Ring w/ Level 30mm, 4 Screw |
| A129 | Top Half of Ring w/ Level & Mount 30mm, 4 Screw |
| A359 | Top Half of Ring w/ Level 30mm, 6 Screw |
| A360 | Top Half of Ring w/ Level & Mount 30mm, 6 Screw |
| A272 | Top Half of Ring w/ Level & Mount 34mm, 4 Screw |