---
product_id: 492814236
title: "Sentinel 10-40x50 Second Focal Plane, 1/8 MOA Precise Adjustments, Designed for 25 Meters Benchrest Target Shooting, Turret Lock System, SCOL-34"
brand: "vector optics"
price: "NT$12052"
currency: TWD
in_stock: true
reviews_count: 8
category: "Vector Optics"
url: https://www.desertcart.tw/products/492814236-sentinel-10-40x50-second-focal-plane-1-8-moa-precise
store_origin: TW
region: Taiwan
---

# 1/8 MOA precise click adjustments 10-40x magnification range Turret lock system for zero retention Sentinel 10-40x50 Second Focal Plane, 1/8 MOA Precise Adjustments, Designed for 25 Meters Benchrest Target Shooting, Turret Lock System, SCOL-34

**Brand:** vector optics
**Price:** NT$12052
**Availability:** ✅ In Stock

## Summary

> 🎯 Lock your shot, own the range — precision that never quits.

## Quick Answers

- **What is this?** Sentinel 10-40x50 Second Focal Plane, 1/8 MOA Precise Adjustments, Designed for 25 Meters Benchrest Target Shooting, Turret Lock System, SCOL-34 by vector optics
- **How much does it cost?** NT$12052 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/492814236-sentinel-10-40x50-second-focal-plane-1-8-moa-precise)

## Best For

- vector optics enthusiasts

## Why This Product

- Trusted vector optics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lock It Down:** Turret lock system prevents accidental adjustments, keeping your zero locked in during intense sessions.
- • **Built to Endure:** Shock-tested to 750G and IPX4 water-resistant, crafted from durable 6061-T6 aluminum for rugged reliability.
- • **Pinpoint Precision at 40x:** Experience razor-sharp targeting with a 1.5mm center dot perfectly sized for 25m benchrest competition.
- • **Micro-Adjustments for Mastery:** Fine-tune your shot with ultra-responsive 1/8 MOA clicks and 50 MOA total elevation/windage travel.
- • **Optimized for Airgun Benchrest:** Specialized diopter compensation and side parallax adjustment tailored for 25m airgun precision shooting.

## Overview

The Vector Optics Sentinel 10-40x50 is a high-performance rifle scope engineered specifically for 25-meter airgun benchrest shooting. Featuring a 50mm multi-coated objective lens, 1/8 MOA precise adjustments, and a turret lock system, it delivers exceptional clarity and accuracy. Built from rugged 6061-T6 aluminum with shock and water resistance, this scope ensures durability and consistent zero retention in competitive environments.

## Description

desertcart.com : Vector Optics Sentinel 10-40x50 Second Focal Plane, 1/8 MOA Precise Adjustments, Designed for 25 Meters Benchrest Target Shooting, Turret Lock System, SCOL-34 : Sports & Outdoors

Review: Solid scope, great price point. - I got this last weekend and just returned from the 50 yard 22LR range with good results. At 25 yards, the initial rounds were 4 inches low and 4 inches left, but after dialing up and right the appropriate number of clicks, bulls-eye! With 1/8 moa per click this required nearly a 1.5 rotation of each adjuster but after landing close, the sighting adjustments were responsive. At 40 power I can see exactly where they land. It comes with very tall scope rings that are caliper type for a standard rail. They need to be on the tall side because the scope is quite large. Eye relief is what you expect and the focus knob is a used quite a bit as you change magnification. Glass is clear and the cross hairs are fine but that is appropriate for competitive shooting. This is a non-illuminated daytime scope that is best for benchrest shooting. So far, the bang for the buck is on-target.
Review: Great scope for the price - I initially purchased this for bench rest air gun competitions. Unfortunately, haven't able to use it much because of issues with the air gun I ordered. I did get to try it on two other air guns and it worked really well. I was able to mount it, zero it, and site in a gun in with about 25 pellets. It seems pretty accurate for the price, I might even order another in the future. The one downside was that one of the mounting rings seems a bit to small, it doesn't complete encompass the scope

## Features

- 【Optimized Optics for 25m Benchrest Shooting】: Diopter compensation from -2 to +1.5 via fast-focus eyepiece. Designed exclusively for air gun benchrest shooting and 25m competition. Reticle used at 40x power, with a 1.5mm center dot perfectly matching a 2mm target diameter
- 【Precision Optics and Performance】: The 10-40x scope features adjustable side parallax, 1/8 MOA click adjustments, and a 50mm multi-coated objective lens for accurate targeting and clear visuals. With 50 MOA elevation/windage adjustments and 60 clicks per rotation, it offers fine-tuning capabilities
- 【Turret Lock System】: A turret lock safeguards against unintentional adjustments to the scope’s windage and elevation, essential for shooters maintaining accuracy in rugged conditions
- 【Durable Performance】: Shock tested to 750G. IPX4 water resistance. Made of 6061-T6 aluminum alloy. Includes a user manual, plastic wrench, cleaning cloth, flip-up caps, hex keys
- 【After-sale Service & Maintenance Instructions】: Avoid storing the riflescope in hot places like car compartments. High temperatures can affect lubricants and sealants. The parts are permanently lubricated, so no additional lubrication is needed. Clean the surface with a soft cloth and use lens covers when possible

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BK9D5MRX |
| Best Sellers Rank | #102,341 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #292 in Rifle Scopes |
| Brand | Vector Optics |
| Brand Name | Vector Optics |
| Color | black |
| Compatible Devices | Rifle |
| Customer Reviews | 3.8 3.8 out of 5 stars (81) |
| Date First Available | October 24, 2022 |
| Field Of View | 19.89 Feet |
| Item Dimensions LxWxH | 15.94 x 2.36 x 2.36 inches |
| Item Package Dimensions L x W x H | 17.75 x 4 x 3.75 inches |
| Item Weight | 1.7 Pounds |
| Magnification Maximum | 40 x |
| Magnification Minimum | 10 x |
| Material | Aluminum |
| Model Name | Sentinel X |
| Mounting Type | Weaver Mount |
| Night vision | No |
| Number of Items | 1 |
| Objective Lens Diameter | 50 Millimeters |
| Package Weight | 1.13 Kilograms |
| Reticle Type | Etched |
| Sport | Hunting |
| Style | Benchrest |
| Warranty Description | / |

## Product Details

- **Brand:** Vector Optics
- **Color:** black
- **Compatible Devices:** Rifle
- **Item Weight:** 1.7 Pounds
- **Magnification Maximum:** 40 x
- **Magnification Minimum:** 10 x
- **Material:** Aluminum
- **Objective Lens Diameter:** 50 Millimeters
- **Sport:** Hunting
- **Style:** Benchrest

## Images

![Sentinel 10-40x50 Second Focal Plane, 1/8 MOA Precise Adjustments, Designed for 25 Meters Benchrest Target Shooting, Turret Lock System, SCOL-34 - Image 1](https://m.media-amazon.com/images/I/51XtdWMypyL.jpg)

## Questions & Answers

**Q: Is this rated for a break barrel air rifle?**
A: Hello Eddie Calvert,

Thank you for your interest in the "Vector Optics Sentinel X 10-40x50 SFP Rifle Scope." We're here to provide you with the requested information.

This scope is designed for PCP (Pre-Charged Pneumatic) air rifles and is suitable for the following calibers:

Maximum Caliber: .177 (4.5mm)
Maximum Caliber: .22 (5.5mm)
If you have any further questions or need more information, please don't hesitate to ask. We're here to assist you!

Best regards,
Customer Service
Vector Optics Team

**Q: First focal plane or second focal plane**
A: Vector Optics Sentinel X 10-40x50 Center Dot 1/8MOA Riflescope  is the second focal plane

**Q: Do the crosshairs illuminate?**
A: No they do not illuminate.

**Q: Will this scope hold up to the recoil on a .300 Win Mag?**
A: This optic is specifically designed for precision air-rifle shooting from a bench at 25 meters.  I have it on a .22LR bolt action rifle (I needed the extra magnification).  Personally, I would not put it on a .300 Win Mag.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid scope, great price point.
*by C***Y on March 14, 2025*

I got this last weekend and just returned from the 50 yard 22LR range with good results. At 25 yards, the initial rounds were 4 inches low and 4 inches left, but after dialing up and right the appropriate number of clicks, bulls-eye! With 1/8 moa per click this required nearly a 1.5 rotation of each adjuster but after landing close, the sighting adjustments were responsive. At 40 power I can see exactly where they land. It comes with very tall scope rings that are caliper type for a standard rail. They need to be on the tall side because the scope is quite large. Eye relief is what you expect and the focus knob is a used quite a bit as you change magnification. Glass is clear and the cross hairs are fine but that is appropriate for competitive shooting. This is a non-illuminated daytime scope that is best for benchrest shooting. So far, the bang for the buck is on-target.

### ⭐⭐⭐⭐ Great scope for the price
*by W***E on April 10, 2025*

I initially purchased this for bench rest air gun competitions. Unfortunately, haven't able to use it much because of issues with the air gun I ordered. I did get to try it on two other air guns and it worked really well. I was able to mount it, zero it, and site in a gun in with about 25 pellets. It seems pretty accurate for the price, I might even order another in the future. The one downside was that one of the mounting rings seems a bit to small, it doesn't complete encompass the scope

### ⭐⭐⭐⭐⭐ Great scope clear reticle
*by B***R on August 4, 2025*

First off great price for the quality. Image was clear at 40X I had a small dark ring but just a small adjustment of the parallax and it was gone. Second for the one complaining about zeroing issues this scope moves poi 1/8 inch at 100 yards at 50 it's 1/16th simple math. Also when torquing go in a criss-cross patern with both rings. Snug them then torque to 25 inch pounds.

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-02-08*