Burris XTR Signature 34mm Scope Ring Set - Matte Black Aluminum for Picatinny/Weaver Rails (Model 420211)
The Burris XTR Signature 34mm scope ring set brings tactical-grade engineering to serious hunters and long-range shooters who demand precision without compromise. Built from matte black aluminum and engineered for Picatinny and Weaver rails, these rings combine robust holding power with the lightweight design that matters when you're glassing fields or setting up for extended shooting sessions. The XTR Signature line was purpose-built for shooters who refuse to settle for rings that don't perform.
At the heart of these rings sits Burris's Pos-Align Inserts technology—a system that solves a problem most shooters don't even know they have until they encounter it. Receiver holes drilled slightly off-center, bases that sit imperfectly on the rail, or minor misalignment in assembly can all steal accuracy without you ever knowing why. The Pos-Align system corrects for these real-world tolerances, guaranteeing perfect centering and maximum contact between scope and rings. That means your glass delivers every bit of clarity and brightness it was designed for, and your scope stays where you point it—not drifting due to mounting issues.
The dual steel clamps feature a full cross-through connection that locks onto any width Picatinny rail, adding genuine strength without the weight penalty of heavier steel rings. What truly sets the XTR Signature apart is what comes in the box: one complete set of MOA insert pairs covering 0, ±5, ±10, and ±20 MOA. This gives you the flexibility to dial in 0, 5, 10, 15, 20, 25, 30, or 40 MOA of cant without relying on expensive tapered bases or time-consuming shimming—a real advantage when you're dialing for extreme distance or compensating for odd bolt-action geometry.
Whether you're building a precision rifle for thousand-yard work or upgrading a hunting rig that demands zero-shift stability, the XTR Signature delivers the kind of dependable, no-fuss performance that lets you focus on the shot, not the gear.
Key Features
- Pos-Align Inserts technology for perfect scope centering and receiver hole correction
- Dual steel clamps with full cross-through connection for secure Picatinny/Weaver rail mounting
- Lightweight matte black aluminum construction
- Interchangeable MOA inserts included: 0, ±5, ±10, and ±20 MOA pairs
- Supports 0–40 MOA of cant without tapered bases or shimming
- Maximum scope-to-ring contact preserves optical clarity and brightness
Specifications
| Model Number | 420211 |
| Brand | Burris |
| Scope Tube Diameter | 34mm |
| Rail Compatibility | Picatinny and Weaver style rails |
| Finish | Matte Black |
| Material | Aluminum (rings) with steel clamps |
| Included Inserts | One set 0 MOA, one set ±5 MOA, one set ±10 MOA, two sets ±20 MOA |
Frequently Asked Questions
What rail systems are these rings compatible with?
The XTR Signature rings mount on Picatinny rails and most Weaver-style rails. The dual steel clamps are designed to work on any width Picatinny rail.
What do the MOA inserts do, and how many come with the set?
The Pos-Align MOA inserts let you correct for receiver misalignment and dial in cant without shimming or tapered bases. Each set includes 0 MOA (for no cant), ±5 MOA, ±10 MOA, and two sets of ±20 MOA inserts, allowing you to achieve 0, 5, 10, 15, 20, 25, 30, or 40 MOA of total cant.
Will these rings work on a receiver with off-center mounting holes?
Yes. The Pos-Align Inserts technology is specifically engineered to correct misalignment caused by receiver holes drilled off-center or bases and rings seated imperfectly on the rail, ensuring your scope stays centered and maintains zero.
What type of scope tube diameter do these rings fit?
These are 34mm rings, designed for 34mm scope tubes.

