Vector Optics X-ACCU 34mm Adjustable Elevation Picatinny Rings (V-59 / XASR-3050) — Precision Height & Cant Control for Long-Range Zeroing

The Vector Optics X-ACCU 34mm Adjustable Elevation Rings are purpose-built for shooters who need fine control over scope height and a practical way to add slight elevation (cant) without swapping bases. Designed for 34 mm scope tubes and standard MIL-STD-1913 Picatinny rails, these rings provide a stepless center-height range of 34.5–40.5 mm (bottom to optical center), letting you optimize cheek weld, clear large objectives with caps, and recover internal elevation in your scope for longer distances. Precision-machined from 6061-T6 aluminum with a durable black matte anodized finish, the X-ACCU system brings repeatable, rigid clamping and smart adjustability to hunting, competition, and tactical carbines or bolt guns.

Key Advantages

• Adjustable center height (34.5–40.5 mm): Dial your optic to the ideal line-of-sight for comfort, eye alignment, and accessory clearance.
• Elevation/cant tuning via ring differential: Introduce a small rear-over-front height difference to reclaim turret travel for longer-range zeros (use conservative differentials to protect the scope tube).
• Scope stays near mechanical center: By lifting the rear slightly, you reduce the amount of “up” you must dial, improving tracking and hold usability.
• Picatinny cross-bolt interface: Secure, repeatable clamping on true 1913 rails for duty, training, and matches.
• Even tube pressure: Four cap screws per ring distribute load uniformly to minimize marring and slippage under recoil.
• Light, rigid build: 6061-T6 aluminum construction balances stiffness with low mass for lively handling.
• Low-glare finish: Black matte anodizing resists corrosion and reflections in bright or wet conditions.

Real-World Use Cases

Long-Range Zero on Flat Rails

If your scope runs out of “up” on a flat base, micro-raise the rear ring (relative to the front) to add a measured cant and free turret travel. This helps reach distance without pushing the erector to its limits.

Objective & Accessory Clearance

Large objectives, flip caps, or tight handguard/rail geometry? Set both rings to a higher, equal height for clean clearance while keeping the rifle’s ergonomics consistent.

Competition & Gas-Gun Applications

PRS-style gas-gun stages and carbine matches benefit from a head-up position and a zero that tracks true. The X-ACCU lets you fine-tune setup during load or optic changes without new mounts.

Mechanical Design & Durability

• Material: 6061-T6 aluminum alloy, precision CNC-machined for ring concentricity and repeatability.
• Finish: Black matte anodized for wear and corrosion resistance.
• Rail standard: MIL-STD-1913 Picatinny cross-bolt clamp for secure, repeatable mounting.
• Fasteners: Four cap screws per ring for even clamping across the 34 mm tube.
• User-set adjustability: Stepless vertical adjustment with reference marks to aid consistent setup (set both rings equal for height; introduce a small differential only when cant is required).

Best-Practice Setup Tips

• Plan your height: Start with both rings set to the same reference, then confirm objective/handguard clearance with your preferred caps or sunshades.
• Level first, then clamp: Degrease rail and screws; lightly seat rings on the rail. Level the rifle and scope, then snug hardware before final torque.
• Small, measured cant only: When adding rear height for elevation, keep the differential modest to avoid stressing the scope tube. For large cant values, use a dedicated sloped base.
• Torque guidance: Scope cap screws ≤ 18 in-lb. Picatinny cross-bolts typically ~25 in-lb (acceptable up to 45 in-lb). Tighten in an alternating “X” pattern with a calibrated driver.
• Witness marks: Paint-pen the screws to monitor any shift during classes or field use.

What’s in the Box

• Pair of Vector Optics X-ACCU 34 mm Adjustable Elevation Picatinny Rings (V-59)
• Hex/Torx key for adjustments and cap screws
• Retail packaging and quick-start guide

Technical Specifications

Summary

Vector Optics X-ACCU 34 mm Adjustable Elevation Rings give you the freedom to set perfect scope height and add a controlled amount of cant for distance, all while preserving a rigid, repeatable mount. With stepless 34.5–40.5 mm center height, even clamping from four cap screws per ring, and a secure Picatinny interface, they’re a smart, durable solution for hunters, competitors, and precision-minded carbine shooters who demand fine-tuned optics setup without changing bases.