Vortex Precision Extended Cantilever Mount 34mm

.br-product-v3{--br-ink:#17201c;--br-muted:#54615b;--br-line:#d9e0dc;--br-soft:#f5f7f5;--br-deep:#10271d;--br-gold:#f2d58e;color:var(--br-ink);font-size:16px;line-height:1.68;max-width:1040px;margin:0 auto}
.br-product-v3 *{box-sizing:border-box}
.br-product-v3 p{margin:0 0 12px}
.br-product-v3 a{color:#195e43;text-decoration-thickness:1px;text-underline-offset:3px}
.br-product-v3 .br-hero-v3,.br-product-v3 .br-final{background:var(--br-deep);border-radius:18px;padding:clamp(24px,5vw,48px);margin:0 0 28px}
.br-product-v3 .br-hero-v3,.br-product-v3 .br-hero-v3 p,.br-product-v3 .br-hero-v3 strong,.br-product-v3 .br-hero-v3 span,.br-product-v3 .br-hero-v3 a,.br-product-v3 .br-final,.br-product-v3 .br-final p,.br-product-v3 .br-final strong,.br-product-v3 .br-final span,.br-product-v3 .br-final a{color:#fff!important;opacity:1!important}
.br-product-v3 .br-hero-v3 .br-eyebrow,.br-product-v3 .br-final .br-eyebrow{color:var(--br-gold)!important}
.br-product-v3 .br-eyebrow{font-size:.78rem;line-height:1.3;letter-spacing:.12em;text-transform:uppercase;font-weight:800;margin-bottom:10px}
.br-product-v3 .br-hero-title{display:block;font-size:clamp(1.65rem,4vw,2.55rem);line-height:1.13;margin-bottom:14px;font-weight:850}
.br-product-v3 .br-hero-v3 a.br-cta{display:inline-block;margin-top:8px;padding:11px 16px;border-radius:999px;background:var(--br-gold);color:#102119!important;font-weight:800;text-decoration:none}
.br-product-v3 .br-section-title{display:block;font-size:clamp(1.18rem,2.5vw,1.42rem);line-height:1.25;font-weight:850;margin:30px 0 13px;color:var(--br-ink)}
.br-product-v3 .br-box{background:var(--br-soft);border:1px solid var(--br-line);border-radius:14px;padding:20px;margin:0 0 18px}
.br-product-v3 .br-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0 0 18px}
.br-product-v3 .br-card{border:1px solid var(--br-line);border-radius:14px;padding:18px;background:#fff}
.br-product-v3 .br-card-title{display:block;font-size:1rem;line-height:1.35;font-weight:850;margin-bottom:8px;color:var(--br-ink)}
.br-product-v3 details{border:1px solid var(--br-line);border-radius:12px;background:#fff;padding:0 16px;margin:10px 0}
.br-product-v3 summary{cursor:pointer;font-weight:800;padding:14px 0;color:var(--br-ink)}
.br-product-v3 details p{padding:0 0 14px;color:var(--br-ink)}
.br-product-v3 .br-note{border-left:4px solid #b78c2c}
@media(max-width:640px){.br-product-v3{font-size:15.8px;line-height:1.62}.br-product-v3 .br-grid{grid-template-columns:1fr}.br-product-v3 .br-hero-v3,.br-product-v3 .br-final{padding:24px 20px;border-radius:14px}.br-product-v3 .br-box,.br-product-v3 .br-card{padding:16px}}



34 mm · 40 mm Center · Precision Cantilever
Vortex Precision Extended Cantilever 34 mm: defined height and offset without 20-MOA tilt This precision mount is designed for scopes with a 34 mm main tube and positions the optic further forward with extended cantilever geometry. According to available product data, the optical axis is 40 mm above the base.

Our honest assessment

The main benefit lies in the combination of 34 mm ring size, one-piece cantilever design, and defined center height. This can help set up eye relief and head position cleanly on Picatinny-based setups.
This version is not listed as a 20-MOA model in the available data. If you specifically need extra tilt for long-range adjustments, you should not expect a tilted base.



Works well if … … your scope has a 34 mm main tube.
… you need offset for correct eye relief.
… 40 mm center height fits stock line, objective clearance, and natural head position.


Less suitable if … … your scope has a 30 mm or 1 inch main tube.
… you are explicitly looking for a 20-MOA mount.
… you want to build an ultralight setup and 227 g mount weight matters.


Features and practical effect


34 mm ring diameter
The central compatibility specification: Only a 34 mm main tube fits in these rings. Objective or eyepiece diameter are not relevant for this.


Extended Cantilever Offsets the optic forward, creating more room for eye relief on modern rail setups.


40 mm Center Height The optical axis sits about 40 mm or 1.574 inches above the base. This affects cheek weld, head position, and objective clearance.


Defined Torque Values 45-50 in-lb for the base clamp and 18 in-lb for the ring screws are specified in the available product data and should be applied with a suitable torque tool.


Avoid limits, disadvantages, and bad purchases

Do not confuse this version with the 20-MOA version. If you need an inclined mount for extra elevation, you need the appropriately marked variant.
At about 227 g, the mount is not lightweight. This can be useful or bothersome on a light hunting rifle—depending on whether stability, balance, or minimal overall weight is the priority.


Technical Data with Practical Interpretation


Tube Diameter 34 mm – must fit the main tube of the scope.


Center Height 40 mm / 1.574 inches – relevant for cheek weld, objective clearance, and height above barrel axis.


Weight Approx. 227 g – consciously factor into overall balance with light setups.


Base Clamp 45-50 in-lb or about 5-5.6 Nm according to available product data.


Ring Screws 18 in-lb or about 2 Nm according to available product data – tighten evenly and without stress.


Inclination No 20-MOA specification in this listing. Do not plan as an inclined variant.


Design Precision Extended Cantilever – one-piece mount with forward offset.


Origin Made in USA according to available product data.


Scope of Delivery
1 × Vortex Precision Extended Cantilever Mount for 34 mm scopes.
Safe Mounting
Perform mounting work only on a fully unloaded and checked firearm. Keep contact surfaces clean, align the scope without stress, and tighten ring screws evenly. Use a suitable torque tool for final mounting and observe the specified torque values. After initial mounting, heavy transport, or impact, check mounting tightness and point of impact.
FAQ about the Precision Extended Cantilever 34 mm
Is this mount suitable for 30 mm scopes? No. This version is designed for 34 mm main tubes. Does the mount have 20 MOA inclination? This version is not listed as a 20-MOA variant in the available product data. How high does the optic sit? The optical axis is 40 mm or 1.574 inches above the base according to product data. What torque values are specified? 45-50 in-lb for the base clamp and 18 in-lb for the ring screws.

Black Raptor · honestly rated
The 34 mm Precision mount is right when tube size, 40 mm height, and cantilever offset are consciously chosen. If you are looking for 20 MOA inclination, do not accidentally buy this version as a replacement.