---
product_id: 2665750
title: "Mil-Spec Back-up Iron Sight (B.U.I.S)"
brand: "matech"
price: "SAR 685"
currency: SAR
in_stock: true
category: "Matech"
url: https://www.desertcart.com.sa/products/2665750-mil-spec-back-up-iron-sight-b-u-i-s
store_origin: SA
region: Saudi Arabia
---

# Adjustable up to 600m precision Spring-loaded aperture for instant deployment Picatinny mount compatibility Mil-Spec Back-up Iron Sight (B.U.I.S)

**Brand:** matech
**Price:** SAR 685
**Availability:** ✅ In Stock

## Summary

> 🎯 Lock on. Stand out. Never miss your mark.

## Quick Answers

- **What is this?** Mil-Spec Back-up Iron Sight (B.U.I.S) by matech
- **How much does it cost?** SAR 685 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/2665750-mil-spec-back-up-iron-sight-b-u-i-s)

## Best For

- matech enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Professionals:** With a 4.8-star rating from 690 users, join the ranks of elite marksmen who rely on MaTech.
- • **Rapid Deployment Mechanism:** Spring-loaded aperture ensures your sight is ready the moment you need it—no fumbling, no delay.
- • **Ultra-Lightweight Durability:** Weighing just 0.21 ounces, this iron sight offers rugged reliability without weighing you down.
- • **Seamless Picatinny Integration:** Engineered for perfect compatibility with standard Picatinny rails, making upgrades effortless.
- • **Precision Targeting at Distance:** Adjust your sight up to 600 meters for unmatched accuracy in any tactical scenario.

## Overview

The MaTech Mil-Spec Back-up Iron Sight (B.U.I.S) is a precision-engineered, spring-loaded iron sight designed for rifles with Picatinny mounts. Adjustable up to 600 meters, it offers rapid deployment and ultra-lightweight durability, making it a trusted choice for professionals and enthusiasts alike.

## Description

Matech Back Up Iron Sight Sight Picatinny Black Ranging Aperture BUIS

## Features

- Adjustable up to 600 meters
- Spring loaded sight aperture

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002E6SXN4 |
| Best Sellers Rank | #148,101 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #331 in Gun Sights #353 in Hunting & Shooting Gun Stock Accessories |
| Brand Name | Matech |
| Color | Black |
| Compatible Devices | Rifle (Picatinny Mount Compatibility) |
| Customer Reviews | 4.8 4.8 out of 5 stars (690) |
| Item Display Dimensions | 1.89 x 1.81 inches |
| Item Display Weight | 5.67 g |
| Item Weight | 0.21 Ounces |
| Lens Color | Black |
| Magnification Minimum | 1 x |
| Manufacturer | Matech |
| Manufacturer Part Number | BUIS |
| Material Type | Iron |
| Model Name | MaTech Mil-Spec Back-up Iron Sight (B.U.I.S) |
| Model Number | SG_B002E6SXN4_US |
| Mounting Type | Picatinny Mount |
| Night vision | No |
| Product Style | Functional |
| Reticle Type | Post or Peep |
| Sport Type | Archery |
| Thread Type | UNC |
| UPC | 757183266821 121227427347 610242000555 133588902043 956263181416 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Matech
- **Color:** Black
- **Compatible Devices:** Rifle (Picatinny Mount Compatibility)
- **Item Weight:** 0.21 Ounces
- **Magnification Minimum:** 1 x
- **Material:** Iron
- **Mounting Type:** Picatinny Mount
- **Night vision:** No
- **Sport:** Archery
- **Style:** Functional

## Images

![Mil-Spec Back-up Iron Sight (B.U.I.S) - Image 1](https://m.media-amazon.com/images/I/410xzjvOFJL.jpg)

## Questions & Answers

**Q: Is this a genuine MaTech or an airsoft copy?**
A: It's genuine, she holds zero just fine and is rock solid.

**Q: What is the best front sight to match with this?**
A: I have a GG&G 1281 Flip Up Front Sight.  They work well together.  Make sure that if you go that route, pick the sight that fits what your gun has.  Some gas blocks are lower than the plane of where the rear sight mounts.  If that's the case, choose the one that specifies "for gas block mounting."  Mine happens to be the same plane all the entire length of the rifle, so this one worked fine.  It's all aluminum and matches the finish on my rifle very well.  Flip ups are nice when you opt to run optics also.  Likewise, for red dots, it can cowitness if desired.  A good red dot will not require a cowitness.  The sight pops up with authority and locks in place.  Once locked, it's very solid and steady.  To fold, just press the button once more and fold it down...again solid engagement.  There are many other sights to choose from.  Some excessively high dollar ones that do the same job.  As a Soldier with over 24 years experience with this particular platform and various sights and optics, as long as it's zeroed properly and remains undamaged, it'll perform better than the shooter for years to come.  The front sight tool that this sight uses is the four prong one.  For only a few bucks, it's worth buying it as well.  The other option is to use a nail or the tip of a bullet to depress and move the sight as needed...usually causing little scratches where the tool does not.  Hope this helps.  Hit me up if you ever have more questions that I may possibly have an answer to.

**Q: Will this work on a Magpul (not the gasblock version)**
A: Yes

**Q: Does anyone know what grain (5.56) bullet matech intended to be used with the sight in order for the elevation adjustment to work properly?**
A: For or all practical purposes, up to 500 meters it will work for all NATO ball ammo (M193, M855 and even M80).  Though it is technically calibrated for 62 grain 5.56 NATO SS109 projectiles, you will not see any real world difference if you use it with 5.56 NATO M193 or 7.62 NATO M80, since the difference between the three rounds drop at 400 meters is only four inches between them.   Which is why it is an excellent back up sight. 

FM 3-22.9 RIFLE MARKSMANSHIP M16-/M4-SERIES WEAPONS

5-89. The M16A2/A3/A4 rifle and M4/M4A1 carbine fire both M193 and M855 ball ammunition with
little difference in accuracy to a range of 500 meters.

## Frequently Bought Together

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*Product available on Desertcart Saudi Arabia*
*Store origin: SA*
*Last updated: 2026-06-20*