---
product_id: 1154692
title: "NcStar 4X20 Compact Air Scope/Blue Lens (SCA420B),Multi"
brand: "ncstar"
price: "137 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Nc Star"
url: https://www.desertcart.pl/products/1154692-ncstar-4x20-compact-air-scope-blue-lens-sca420b-multi
store_origin: PL
region: Poland
---

# Multicoated blue lens for crisp, bright images 26.2 ft field of view @ 100 yards for wide sight 4x magnification for precise targeting NcStar 4X20 Compact Air Scope/Blue Lens (SCA420B),Multi

**Brand:** ncstar
**Price:** 137 zł
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your airgun game with pinpoint precision and crystal-clear views!

## Quick Answers

- **What is this?** NcStar 4X20 Compact Air Scope/Blue Lens (SCA420B),Multi by ncstar
- **How much does it cost?** 137 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/1154692-ncstar-4x20-compact-air-scope-blue-lens-sca420b-multi)

## Best For

- ncstar enthusiasts

## Why This Product

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

## Key Features

- • **Secure Dovetail Mount:** Quick, rock-solid installation tailored for airgun enthusiasts.
- • **Precision 4x Magnification:** Zoom in with clarity and confidence on every shot.
- • **Wide 26.2 ft Field of View:** Keep your target fully in sight with expansive viewing range.
- • **Vivid Multicoated Blue Lens:** Experience enhanced brightness and reduced glare for sharp visuals.
- • **Comfort-Driven 2.5" Eye Relief:** Shoot longer with less eye strain and maximum comfort.

## Overview

The NcStar 4x20 Compact Air Scope with blue multicoated lenses delivers crisp, bright images and a generous 26.2-foot field of view at 100 yards. Designed specifically for airguns, it features a plex reticle, 2.5 inches of eye relief for comfortable aiming, and a secure dovetail ring mount. Lightweight and compact at just 7.88 inches long and 3.35 ounces, this scope is the perfect tactical upgrade for precision plinking and target shooting.

## Description

Product Description Great Product desertcart.com Maximize the performance of your firearm with the NcStar Tactical 4x20 air scope. Equipped with multicoated lenses that provide a crisp sight and a lightweight body, the scope is always ready for action. Specifications Magnification: 4x Tube diameter: 0.75 inches Objective diameter: 20mm Field of view: 26.2 feet @ 100 yards Eye relief: 2.5 inches Exit pupil: 5mm Reticle: Plex Click value: N/A Lens coating: Blue Mount included: Dovetail rings Exterior finish: Matte black Length: 7.88 inches Weight: 3.35 ounces

Review: Great with the Crosman 1377 - This is a nice inexpensive scope that's perfect for air guns. I have mine on a Crosman 1377. I love it. It fits the dovetail on my metal breech and locks down tight and solid. I can put pellets trough the same hole at 15 yards all day long. Update: I just ordered another one of these for my 2240. I've been reading the reviews again and can't believe the ignorance of some of the negative reviews. This fits dovetail mounts only-- NOT weaver, NOT picatinny. It's an airgun scope, NOT airsoft with weaver or picatinny mounts. It's only 4x20 magnification. It's NOT meant for 1000 yard shots on a SKS, Mosin, or any high power rifle. Here are the clearly stated intended uses/specs/etc right off the listing (my caps): Tactical 4x20 air scope compatible with AIR GUNS Multicoated lens ensure crisp, bright image 26.2-foot field of view @ 100 yards Plex reticle; 2.5 INCHES OF EYE RELIEF DOVETAIL RINGS MOUNT; measures 7.88 inches Wow. This poor little scope is taking a beating because people can't read or won't do their homework. It's a nice little scope which works great with air pistols like the Crosman 1377, 1322, 2240, etc with a metal breech, or lower powered pump/co2 rifles like a Crosman 1077. It isn't suitable for high power/low recoil rifles due to low magnification. It's unlikely hold up under the recoil of springers or high power guns.
Review: for $20 its what you would expect. - This scope is crap. But For $20 bucks I was expecting that and it works perfect for my beater plinking 22. It looks cheap, feels cheap, not very sharp or bright and if you drop it it will probably break, but once again its a $20 scope. It seams accurate and has held zero so far.

## Features

- Tactical 4x20 air scope compatible with air guns
- Multicoated lens ensure crisp, bright image
- 26.2-foot field of view @ 100 yards
- Plex reticle; 2.5 inches of eye relief
- Dovetail rings mount; measures 7.88 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000R4HSW2 |
| Best Sellers Rank | #106,431 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #307 in Rifle Scopes |
| Brand | NcSTAR |
| Brand Name | NcSTAR |
| Color | Black |
| Compatible Devices | Handgun |
| Customer Reviews | 3.7 3.7 out of 5 stars (1,374) |
| Date First Available | December 30, 2004 |
| Field Of View | 26.2 Feet |
| Global Trade Identification Number | 00814108010454 |
| Included Components | Product |
| Item Dimensions LxWxH | 9.13 x 2 x 1.5 inches |
| Item Package Dimensions L x W x H | 9.21 x 2.09 x 1.61 inches |
| Item Weight | 3.36 ounces |
| Magnification Maximum | 4 |
| Magnification Minimum | 4 x |
| Manufacturer | NcSTAR |
| Material | Plastic |
| Model Name | SCA420B |
| Mounting Type | Dovetail Mount |
| Night vision | No |
| Number of Items | 1 |
| Objective Lens Diameter | 20 Millimeters |
| Package Weight | 0.11 Kilograms |
| Part Number | SCA420B |
| Product Dimensions | 7.88"L x 7.88"W x 7.88"H |
| Reticle Type | Plex |
| Size | 4x20mm |
| Sport | Hunting |
| Style | rifle-scopes |
| Suggested Users | unisex-adult |
| UPC | 813023051610 758259948955 814108010454 |
| Warranty Description | 2 Year Manufacturer |
| Weight | 1 Pounds |

## Product Details

- **Brand:** NcSTAR
- **Color:** Black
- **Item Weight:** 3.36 ounces
- **Magnification Maximum:** 4
- **Magnification Minimum:** 4 x
- **Material:** Plastic
- **Objective Lens Diameter:** 20 Millimeters
- **Product Dimensions:** 7.88"L x 7.88"W x 7.88"H
- **Sport:** Hunting
- **Style:** rifle-scopes

## Images

![NcStar 4X20 Compact Air Scope/Blue Lens (SCA420B),Multi - Image 1](https://m.media-amazon.com/images/I/61TjZC2EiRL.jpg)

## Questions & Answers

**Q: does it work with UKARMS Russian Dragunov SVD M677A Spring Airsoft Gun Sniper**
A: No clue but measure your rail system in mm and if it comes around 7.88 then consider getting it but I'd get a scope that has adjustable rail fittings

**Q: Will it fit on a daisy model 74 bb rifle**
A: Don’t know.  It was junk so I threw it in the trash.

**Q: will it fit a m1001 bolt action gun? ps don't answer don't know for a answer please.thank you.**
A: Of course it will

**Q: Will it work on this? https://www.amazon.com/gp/product/b000e7pfeu/ref=ox_sc_act_title_2?ie=utf8&psc=1&smid=atvpdkikx0der**
A: UTG Sport Gen 5 Airsoft Master Sniper Rifle looks like it needs a 22mm rather than 3/8 dovetail mount.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great with the Crosman 1377
*by V***P on July 2, 2014*

This is a nice inexpensive scope that's perfect for air guns. I have mine on a Crosman 1377. I love it. It fits the dovetail on my metal breech and locks down tight and solid. I can put pellets trough the same hole at 15 yards all day long. Update: I just ordered another one of these for my 2240. I've been reading the reviews again and can't believe the ignorance of some of the negative reviews. This fits dovetail mounts only-- NOT weaver, NOT picatinny. It's an airgun scope, NOT airsoft with weaver or picatinny mounts. It's only 4x20 magnification. It's NOT meant for 1000 yard shots on a SKS, Mosin, or any high power rifle. Here are the clearly stated intended uses/specs/etc right off the listing (my caps): Tactical 4x20 air scope compatible with AIR GUNS Multicoated lens ensure crisp, bright image 26.2-foot field of view @ 100 yards Plex reticle; 2.5 INCHES OF EYE RELIEF DOVETAIL RINGS MOUNT; measures 7.88 inches Wow. This poor little scope is taking a beating because people can't read or won't do their homework. It's a nice little scope which works great with air pistols like the Crosman 1377, 1322, 2240, etc with a metal breech, or lower powered pump/co2 rifles like a Crosman 1077. It isn't suitable for high power/low recoil rifles due to low magnification. It's unlikely hold up under the recoil of springers or high power guns.

### ⭐⭐⭐⭐⭐ for $20 its what you would expect.
*by C***E on August 19, 2025*

This scope is crap. But For $20 bucks I was expecting that and it works perfect for my beater plinking 22. It looks cheap, feels cheap, not very sharp or bright and if you drop it it will probably break, but once again its a $20 scope. It seams accurate and has held zero so far.

### ⭐ Wouldn't be good on a cap gun
*by M***E on June 5, 2012*

I purchased this after the scope that came on my Storm XT pellet rifle busted. To start with this thing looks like it belongs on a kids cap gun its only 8 1/4" long and about 7/8" wide at its widest. It says its for a .22 caliber rifle and Air guns ( maybe Air pistol) this is not something you put on an Air Rifle. But you get what you pay for. There is absolutely no adjustments. It states that you can rotate the eye piece section for clarity but to me it did nothing. It is now and I can honestly say an absolute piece of junk and a total waiste of $8.00 yea you get what you pay for. One bad thing is that it sits so low that your front sight is about all you see and after putting it on the cross hairs were aiming so far to the left that I had to turn the adjustment to the right over 2 full turns then I got within 1 foot of a target less than 25 feet away but again its hard to even see where your aiming because all you see is your front sight on the rifle and this scope isn't worth me ripping off my front sight. Steer clear of this one folks buy something that at least looks like a scope. Lesson learned.

## Frequently Bought Together

- NcStar 4X20 Compact Air Scope/Blue Lens (SCA420B),multi
- Crosman 7-P577 Pointed .177-Caliber Pellets, lead(500-Count)
- CrosmanCrosman

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-28*