---
product_id: 4341328
title: "Ultra Mag Green Laser Professional Boresighter"
brand: "sitelite"
price: "KD 100.76"
currency: KWD
in_stock: true
reviews_count: 8
category: "Site Lite"
url: https://www.desertcart.com.kw/products/4341328-ultra-mag-green-laser-professional-boresighter
store_origin: KW
region: Kuwait
---

# ±0.1 MOA repeatability 15-hour continuous battery life Fits .22 to .50 cal + 12/20 ga Ultra Mag Green Laser Professional Boresighter

**Brand:** sitelite
**Price:** KD 100.76
**Availability:** ✅ In Stock

## Summary

> 🎯 Lock in your shot with military-grade precision—because your aim deserves the best.

## Quick Answers

- **What is this?** Ultra Mag Green Laser Professional Boresighter by sitelite
- **How much does it cost?** KD 100.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/4341328-ultra-mag-green-laser-professional-boresighter)

## Best For

- sitelite enthusiasts

## Why This Product

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

## Key Features

- • **Pro-Grade Scope Leveling:** SRL Scope Leveler ensures perfectly leveled crosshairs before boresighting—no guesswork, just precision.
- • **Next-Level Targeting Software:** Includes SiteLite BTS program to print custom laser boresighting targets tailored to your rifle and ammo.
- • **Unmatched Durability & Support:** Rugged aluminum build with magnetic mounting and lifetime warranty backed by legendary customer service.
- • **Precision that Commands Respect:** Guaranteed superior accuracy with lifetime warranty—trusted by US Navy & USMC for elite weaponry.
- • **Universal Caliber Compatibility:** Seamlessly fits all calibers from .22 to .50 plus 12 & 20 gauge shotguns—one tool for every firearm in your arsenal.

## Overview

The SiteLite Ultra Mag Green Laser Professional Boresighter delivers unmatched accuracy and repeatability with a bright green Class IIIa laser, 15-hour battery life, and universal fit for calibers from .22 to .50 plus 12 and 20 gauge shotguns. Trusted by US Navy and USMC aviation units, it includes advanced ballistic targeting software and a scope leveler for flawless zeroing. Built from durable aluminum with magnetic mounting and backed by a lifetime warranty, it’s the ultimate tool for professional shooters and serious enthusiasts seeking precision and reliability.

## Description

The SL-500 uses a high visibility bright green laser and has a 15 hour continuous battery. It's guaranteed more accurate than any other boresighter. That's why the US Navy and USMC selected our boresighters, over all others, for their Aviation Unit weapons from 5.56mm to the 20mm canon on the AH-1Z Cobra Attack Helicopter. In addition, the US Navy is using our boresighter, with our special adapter, for the 25mm Gatling Gun on the new F-35 Strike Fighter. The SL-500 includes all adapters to fit.22 cal. To.50 Cal. & 20 and 12 ga. shotguns. The system also includes our Ballistic Targeting System software program to create a custom laser boresighting target for your specific rifle and ammo. All Sitelite Mag Laser Boresighters have a lifetime warranty. And, an optional app is available for your iPad and iPhone for use in the field.

Review: Best I have used - SiteLite SL-500 This review is about the SL-500 used to sight in two semi-auto pistols with laser sights - a Sig Saur P239 semi-auto pistol with a 3.6 inch barrel and a Sig Saur P320 semi-auto pistol with a 3.9 inch barrel. These weapons are for personal defense, and therefore the range for sighting in is much shorter than for rifles which are used at much longer ranges. The SiteLite boresights are of excellent quality and will produce professional results for rifles if the instructions included with them are followed. SiteLite has three available models at different prices. All three produce the same result if you can see the laser dot on the target. The difference in the three units is the power of the laser and the batteries. The lowest priced unit is very satisfactory for sighting in work at personal defense distances if done indoors. I chose the SL-500 because it uses the same battery as my laser sight and tactical flashlight. I wanted to keep my battery supply simple. As described in the unit instructions, an O-ring installed on a screw-in adapter is used for different calibers. I find that installing the proper O-ring isn’t easy, and I suspect that it can be easily damaged. For those reasons, I suggest that once the proper O-ring is installed correctly for a particular caliber, it never be taken off again. SiteLite does that for .22 and .30 caliber. If you have multiple caliber requirements, I suggest you obtain a separate adapter for each different caliber and keep its O-Ring installed permanently. SiteLite claims the units to be the most accurate ones available. I don’t doubt that, but don’t know how to prove or disprove that claim. But I don’t think that projecting the bore sight line more accurately than others is the most important issue. The most important issue is REPEATABILITY. That is, the boresight should project the bore line of sight at exactly the same angle every time it is installed on the firearm. That is hard to determine with rifle scopes and pistol iron sights, but very simple with a pistol laser: 1. Align the laser dot with the SiteLite dot at the sight in range. 2. Remove the SiteLite from the firearm. 3. Reinstall the SiteLite to the firearm and check the two dot alignments at the sight in range 4. If they align properly, the SiteLite has repeated its projection. If not, there is a problem. I have done this exercise several times over a period of several days and some shooting sessions. The SiteLite has always repeated perfectly. There will be more about this a little later. Before getting the SiteLite SL-500, I was using the Bushnell Boresighter. After a lot of research and experimenting, I was able to get accurate results from the Bushnell, but to get those accurate results I had to make adjustments to the Bushnell each time it was reinserted into the barrel. The problem with the adjustment procedure is that it is a “by your visual sight” adjustment, and a very small error has a large effect. If you can get through that stuff, the Bushnell will work fine – just much slower. SiteLite has excellent tools and instructions for work with rifles and scopes mounted on top of the rifle, but almost nothing about pistols and lasers mounted under the barrel. Their great software app for scopes is useless for short ranges and laser sights under the barrel. Here’s how to do it with a laser sight. 1. Make sure the firearm is unloaded. 2. Put the pistol in a firm support such as a vice, aimed at a target at the sight in distance – 20 feet in my case. Align the laser sight dot with the SiteLite dot using the laser sight adjustment screws. 3. Go to the range with a target. Install the target, making it completely level – this is important. Use a level. 4. Steady the pistol as much as possible. Use a pistol vice suitable for firing if available – it’s not available to me. If a vice isn’t available, use sandbags and make such to make the pistol secure and as removed as far as possible from any movement introduced by your human hold and trigger control. 5. Align the laser dot on the bull’s eye on the target, and fire a three shot group. If you don’t have a small group, you have done something wrong. 6. In rare cases, your group will be within the 10 ring, but most times likely not. Don’t be alarmed, there are many variable in this exercise, and we’ll try to correct for them. The main thing is to get a small group with the laser dot on the bull’s eye. Label this target “Firearm Id, Sight In.” You will use many times again. 7. Take the target home and attach it to a wall, making sure it is level – most important – use a level. 8. Make sure that the pistol is unloaded. 9. Secure the pistol firmly in place at the sight in distance. Attach the SiteLite to the barrel and align it with the target bull’s eye. The laser sight dot should also be aligned on the SiteLite dot. If not, there’s a problem. 10. Move the LASER SIGHT DOT to the center of the target group with the laser sight adjustment screws. You’re done. Your next shot at the range at the sight in distance with the pistol firmly secured should be in the ten-ring and maybe even cut the bull’s eye – mine has. I hope you can see why repeatability is so critical. It is much more important than accuracy. Repeatability is required if you are able to make any judgements about the results. Final Thoughts: 1. You must do this for every pistol. The first target group from the P320 was low 1.5 inches. The P239 first group was 1.5 inches high. 2. You must do it for each different cartridge you shoot. I shot five different cartridges from three manufacturers. Each of the five loads required different sight in adjustments. The moral is to try to zero in on what you want to shoot. 3. Save your “Firearm Id, Sight In.” target. Check it often with SiteLite and laser sight dot at the sight in range. The laser sight dot should still be centered on that group. That will tell you if the laser sight or anything else has changed. I don’t know any other way to keep check on your laser sighting system without firing a shot. Good Luck! Wil
Review: Customer Service is top notch - I've had multiple laser bore sighters throughout the years but none that are built with precision and high quality materials. This thing is solid. I figured I'd stop spending money on less expensive lasers and just upgrade to the best there is. This is replacing my LaserLyte that decided to quit on me a few times now. In comparison... well... there isn't one. When holding the SiteLite you know this thing isn't going to break easily. The housing is heavy duty and feels solid in your hand. The green laser penetrates better in the sun and that was one major problem I had with the LaserLyte. The instructions are easy to follow and has all calibers you'll ever need. There is one thing I will point out which most will say here and anywhere you may read reviews. LUBRICATE your O-Rings before inserting the laser into the muzzle. If you switch weapons, LUBRICATE again. I made the mistake of not lubricating the O-Rings when I switched from my SCAR to my Sig and damaged the O-Rings. So now I make it a practice of lubricating every time it goes into a new weapon. I thought I didn't need to since I had lubricated them on the first rifle. Rule of thumb, always do it. I admitted my mistake with the company and requested an invoice to purchase some new O-Rings. They wouldn't take my money and instead offered to replace them for free. It was my mistake yet they insisted on making it right. You rarely find that level of customer service so they'll have a loyal customer for as long as the company seizes to exist. It's a small gesture but still something worth noting.

## Features

- Guaranteed superior accuracy with a lifetime warranty
- Fits all calibers from .22 to .50 cal. plus 20 & 12 ga. Shotguns
- Includes the SiteLite BTS program to printout a laser boresighting target for you specific rifle and ammo
- Includes the SRL Scope Leveler to level your crosshairs before boresighting
- Includes a free Muley Crazy DVD featuring a massive 255" Muley taken by SiteLite President Rich Langner
- Class IIIa Laser Product, less than 5.0mW power output.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002QG76B2 |
| Best Sellers Rank | #95,138 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #132 in Hunting Boresighters |
| Brand | SiteLite |
| Brand Name | SiteLite |
| Color | Red |
| Compatible Devices | Handgun, Rifle, Shotgun |
| Customer Reviews | 4.4 out of 5 stars 738 Reviews |
| Global Trade Identification Number | 00703952250003 |
| Manufacturer | Site Lite |
| Material | Aluminum |
| Material Type | Aluminum |
| Mounting Type | magnetic mounting |
| Night vision | No |
| Product Style | Boresighter |
| Reticle Type | Simple |
| Sport | Hunting |
| Sport Type | Hunting |
| Style | Boresighter |
| UPC | 703952250003 |

## Product Details

- **Brand:** SiteLite
- **Color:** Red
- **Style:** Boresighter
- **Sport:** Hunting
- **Material:** Aluminum
- **Compatible Devices:** Handgun, Rifle, Shotgun
- **Mounting Type:** magnetic mounting
- **Night vision:** No
- **Model Name:** ULTRA MAG GREEN LASER
- **Manufacturer:** Site Lite

## Images

![Ultra Mag Green Laser Professional Boresighter - Image 1](https://m.media-amazon.com/images/I/51po7pF63VL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How well could this function on rifles with muzzle brakes or flash suppressors? I don't trust the opening on a muzzle brake to be perfectly concentric**
A: This unit relies on a pretty concentric barrel end (be it muzzle, muzzle brake, or flash suppressor) to be maximally accurate.  However, on a typical setup, it is definitely close enough to get you "on paper" reliably.  This is especially true if you use their software to print weapon-specific sighting patterns.  I recently sighted my 7mm Rem Mag to within 2 MOA at 200 yards. However, I have found that the part of the device that goes into the barrel is too short to actually reach the barrel with big muzzle brakes (like on my 338 Lapua).  In that case, you're better off removing the brake and laser sighting, then reinstalling the brake.

**Q: There are guides on youtube on dry firing with boresighters. I wondered if it's OK to do that with Glock 19 (it has 4 in. barrel) and the SL - 500?**
A: You'd best lock back the slide and see if the Site Lite protrudes far enough into the chamber to cause a problem. This dry firing is riskyat best. I've read more than one person whose Site Lite fell out of the barrel because of human error.

**Q: How well could this function on rifles with muzzle brakes or flash suppressors? I don't trust the opening on a muzzle brake to be perfectly concentric**
A: The front cone of the laser will center itself in the muzzle break or flash hider. The purpose of any bore sighter is to just get you on paper at 25 or 50 yards. You then sight in the rifle at whatever distance you choose so if the hole in the muzzle break is not perfectly centered or out of round it really doesn't make any difference. I use one of these to bore sight rifles for customers and due to space restrictions I have to bore sight at about 20 feet. I have never had a customer come back saying the sights were very far off.

**Q: Will the O rings work with 300 Blackout or 300 Ham'r?**
A: Yes, it comes with .30 cal. O rings. I've used it to sight in my .308 and my 2 223s. It works perfectly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best I have used
*by W***1 on July 10, 2017*

SiteLite SL-500 This review is about the SL-500 used to sight in two semi-auto pistols with laser sights - a Sig Saur P239 semi-auto pistol with a 3.6 inch barrel and a Sig Saur P320 semi-auto pistol with a 3.9 inch barrel. These weapons are for personal defense, and therefore the range for sighting in is much shorter than for rifles which are used at much longer ranges. The SiteLite boresights are of excellent quality and will produce professional results for rifles if the instructions included with them are followed. SiteLite has three available models at different prices. All three produce the same result if you can see the laser dot on the target. The difference in the three units is the power of the laser and the batteries. The lowest priced unit is very satisfactory for sighting in work at personal defense distances if done indoors. I chose the SL-500 because it uses the same battery as my laser sight and tactical flashlight. I wanted to keep my battery supply simple. As described in the unit instructions, an O-ring installed on a screw-in adapter is used for different calibers. I find that installing the proper O-ring isn’t easy, and I suspect that it can be easily damaged. For those reasons, I suggest that once the proper O-ring is installed correctly for a particular caliber, it never be taken off again. SiteLite does that for .22 and .30 caliber. If you have multiple caliber requirements, I suggest you obtain a separate adapter for each different caliber and keep its O-Ring installed permanently. SiteLite claims the units to be the most accurate ones available. I don’t doubt that, but don’t know how to prove or disprove that claim. But I don’t think that projecting the bore sight line more accurately than others is the most important issue. The most important issue is REPEATABILITY. That is, the boresight should project the bore line of sight at exactly the same angle every time it is installed on the firearm. That is hard to determine with rifle scopes and pistol iron sights, but very simple with a pistol laser: 1. Align the laser dot with the SiteLite dot at the sight in range. 2. Remove the SiteLite from the firearm. 3. Reinstall the SiteLite to the firearm and check the two dot alignments at the sight in range 4. If they align properly, the SiteLite has repeated its projection. If not, there is a problem. I have done this exercise several times over a period of several days and some shooting sessions. The SiteLite has always repeated perfectly. There will be more about this a little later. Before getting the SiteLite SL-500, I was using the Bushnell Boresighter. After a lot of research and experimenting, I was able to get accurate results from the Bushnell, but to get those accurate results I had to make adjustments to the Bushnell each time it was reinserted into the barrel. The problem with the adjustment procedure is that it is a “by your visual sight” adjustment, and a very small error has a large effect. If you can get through that stuff, the Bushnell will work fine – just much slower. SiteLite has excellent tools and instructions for work with rifles and scopes mounted on top of the rifle, but almost nothing about pistols and lasers mounted under the barrel. Their great software app for scopes is useless for short ranges and laser sights under the barrel. Here’s how to do it with a laser sight. 1. Make sure the firearm is unloaded. 2. Put the pistol in a firm support such as a vice, aimed at a target at the sight in distance – 20 feet in my case. Align the laser sight dot with the SiteLite dot using the laser sight adjustment screws. 3. Go to the range with a target. Install the target, making it completely level – this is important. Use a level. 4. Steady the pistol as much as possible. Use a pistol vice suitable for firing if available – it’s not available to me. If a vice isn’t available, use sandbags and make such to make the pistol secure and as removed as far as possible from any movement introduced by your human hold and trigger control. 5. Align the laser dot on the bull’s eye on the target, and fire a three shot group. If you don’t have a small group, you have done something wrong. 6. In rare cases, your group will be within the 10 ring, but most times likely not. Don’t be alarmed, there are many variable in this exercise, and we’ll try to correct for them. The main thing is to get a small group with the laser dot on the bull’s eye. Label this target “Firearm Id, Sight In.” You will use many times again. 7. Take the target home and attach it to a wall, making sure it is level – most important – use a level. 8. Make sure that the pistol is unloaded. 9. Secure the pistol firmly in place at the sight in distance. Attach the SiteLite to the barrel and align it with the target bull’s eye. The laser sight dot should also be aligned on the SiteLite dot. If not, there’s a problem. 10. Move the LASER SIGHT DOT to the center of the target group with the laser sight adjustment screws. You’re done. Your next shot at the range at the sight in distance with the pistol firmly secured should be in the ten-ring and maybe even cut the bull’s eye – mine has. I hope you can see why repeatability is so critical. It is much more important than accuracy. Repeatability is required if you are able to make any judgements about the results. Final Thoughts: 1. You must do this for every pistol. The first target group from the P320 was low 1.5 inches. The P239 first group was 1.5 inches high. 2. You must do it for each different cartridge you shoot. I shot five different cartridges from three manufacturers. Each of the five loads required different sight in adjustments. The moral is to try to zero in on what you want to shoot. 3. Save your “Firearm Id, Sight In.” target. Check it often with SiteLite and laser sight dot at the sight in range. The laser sight dot should still be centered on that group. That will tell you if the laser sight or anything else has changed. I don’t know any other way to keep check on your laser sighting system without firing a shot. Good Luck! Wil

### ⭐⭐⭐⭐⭐ Customer Service is top notch
*by I***E on March 22, 2022*

I've had multiple laser bore sighters throughout the years but none that are built with precision and high quality materials. This thing is solid. I figured I'd stop spending money on less expensive lasers and just upgrade to the best there is. This is replacing my LaserLyte that decided to quit on me a few times now. In comparison... well... there isn't one. When holding the SiteLite you know this thing isn't going to break easily. The housing is heavy duty and feels solid in your hand. The green laser penetrates better in the sun and that was one major problem I had with the LaserLyte. The instructions are easy to follow and has all calibers you'll ever need. There is one thing I will point out which most will say here and anywhere you may read reviews. LUBRICATE your O-Rings before inserting the laser into the muzzle. If you switch weapons, LUBRICATE again. I made the mistake of not lubricating the O-Rings when I switched from my SCAR to my Sig and damaged the O-Rings. So now I make it a practice of lubricating every time it goes into a new weapon. I thought I didn't need to since I had lubricated them on the first rifle. Rule of thumb, always do it. I admitted my mistake with the company and requested an invoice to purchase some new O-Rings. They wouldn't take my money and instead offered to replace them for free. It was my mistake yet they insisted on making it right. You rarely find that level of customer service so they'll have a loyal customer for as long as the company seizes to exist. It's a small gesture but still something worth noting.

### ⭐⭐⭐⭐⭐ A powerful and versatile sighting system
*by W***G on April 18, 2025*

OK, let's start with the "con"... It's a lot more complicated than most of the other boresight systems on the market. This stems from its versatility. You can boresight anything from .22LR to 12GA with this system. It fits nice and snug in the barrel, provided you have the correct O ring installed. The laser is powerful, I could see it through my optic at 100yds, mid-day, while slightly overcast.. Have not owned long enough to comment on battery life. In short, it's highly functional, extremely versatile, and professional grade.

## Frequently Bought Together

- SiteLite Ultra Mag Green Laser Professional Boresighter
- Wheeler Engineering Professional Reticle Leveling System with Heavy-Duty Construction, Universal Design and Storage Case for Gunsmithing and Maintenance

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-21*