--- product_id: 6822951 title: "Sightmark Pistol Boresight with Red Laser" brand: "sightmark" price: "£38.77" currency: GBP in_stock: true reviews_count: 13 category: "Sightmark" url: https://www.desertcart.co.uk/products/6822951-sightmark-pistol-boresight-with-red-laser store_origin: GB region: United Kingdom --- # Precision zeroing accuracy 1mW Class II Red Laser Durable brass construction Sightmark Pistol Boresight with Red Laser **Brand:** sightmark **Price:** £38.77 **Availability:** ✅ In Stock ## Summary > 🔴 Lock your sights, own the range—precision that never quits. ## Quick Answers - **What is this?** Sightmark Pistol Boresight with Red Laser by sightmark - **How much does it cost?** £38.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/6822951-sightmark-pistol-boresight-with-red-laser) ## Best For - sightmark enthusiasts ## Why This Product - Trusted sightmark brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Rugged brass body withstands recoil and rough handling without losing alignment. - • **Save Time & Ammo:** Quickly zero your sights to reduce costly cartridge waste and maximize range efficiency. - • **Compact & Travel-Ready:** Lightweight design fits effortlessly in your range bag—accuracy on the go. - • **Instant Laser Activation:** No switches—just insert batteries and start zeroing immediately, perfect for fast-paced setups. - • **Pinpoint Precision Alignment:** Eliminate guesswork with laser-guided sight calibration for flawless zeroing every time. ## Overview The Sightmark Pistol Boresight with Red Laser is a compact, durable brass tool featuring a safe 1mW Class II red laser (632-650nm) for precise sight alignment. Designed for handgun calibers like .40 S&W, it ensures fast, accurate zeroing to save time and ammo. Lightweight and travel-friendly, it activates instantly with battery insertion and maintains consistent performance under recoil, making it a must-have for hunters and shooting pros aiming for flawless accuracy. ## Description Tested and recommended by the NTOA, the Sightmark .40 S&W Boresight Offers a quick and easy way to sight in your .40 Smith & Wesson pistol. The bore sight can be used as a training aid for "quick draw" drills. Includes a carrying case, three (3) AG3 batteries and instructions. Review: Great product - After reading negative comments in the review I was skeptical about this 9mm bore sight. I bought a 223 bore sight from them years ago and worked flawlessly sighting in my Eotech, it was dead on out the box. I have 5 handguns with various optics on them that I sighted in already. I was already happy with my zero and wanted to see how close this bore sight was. What I noticed was that my windage was dead center on all my handguns and my elevation was off by a few clicks. I took out the bore sight multiple times and rotated it to see if it moved away from my zero. Every time it was still at dead center and the lazer did not move direction. I was surprised how accurate this lazer is. It was pretty damn close to all my zeroes. I wish I had this from the beginning. It would of saved me a lot of time and ammo. I can honestly recommend this product. P.S. I tested this at 20 yards. I hope this helps Review: Very Handy! - I bought the 9mm version. I used it to adjust the iron and red dot sights on a 9mm carbine at 25 yards. The laser is only so bright, so you're either going to have to do this indoors, or outdoors on a less then bright sunny day. My unit came with 2 AG5 batteries. It will also accept 3 AG3 batteries. There is no on/off switch, when the batteries are in, the unit is on. I suggest you take them out when you're done. I had mine running for about 45 minutes on the batteries that it came with without noticing any change in the lasers brightness. After sighting in the iron sights at 25 yards, I experimented by rotating the boresight in the bore 90 degrees at a time to see if the laser was still aligned with my sights. I noticed no difference at that distance. My red dot is mounted on an American Defense quick detach mount. It was interesting and educational to use the laser to sight in the red dot. After my initial sighting in, I used my hand to flex and twist the sight on it's mount while it was attached to the rail of my gun. Guess what? It was clear I needed to tighten my mount! Then I used the laser to see just how well the red dot would hold zero when repeatedly removed and replaced on the weapon. Again, at 25 yards, I couldn't tell a difference. Finally, as I had done with the iron sights, I rotated the boresight 90 degrees in the bore, rechecking it each time against the red dot sight. Everything looked good! After all that, I switched to live ammo to check my efforts. I was off about half an inch high to the right. Fantastic results as far as I'm concerned! I'll sort out the rest at the range. I consider what I paid for this device money well spent for what I've used it for so far. Mine was a tad tight in the bore, even after cleaning the bore carefully and applying a VERY light coat of oil, I still had to use a pair of needle nose pliers to carefully extract it each time I removed it. I don't consider this an issue, just passing along my experience. EDIT: April 10, 2016 - Just a quick note on batteries, The second time I took this thing out to use it, the original AG5 batteries it came with were dead. The laser came on when I put them in but before I could use it, it sputtered out. I had bought a package of 10 Maxell AG3 batteries at the same time I ordered this boresight so I put in 3 of them. They lasted 10 minutes at best! I don't know exactly what to make of this information. Are two AG5s inherently better then three AG3s? Are the Maxells I bought just old or crappy? This much I can tell you, you gotta work quick to get anything done in 10 minutes... ## Features - <1mW 632-650nm Class II Red Laser: This low-power, red laser falls into Class II laser light classification, making it safe for use in various applications, while offering a visible and focused beam of light without posing significant eye hazards. - Precision Accuracy: This boresighting tool offers exceptional precision, ensuring that your sights or optics align precisely. It eliminates guesswork and enhances accuracy, making it an invaluable asset for zeroing. - Durable Bore Sight: Built for repeated use, ensuring precise alignment and calibration. Withstands recoil and rough handling during zeroing. Maintains accuracy over time, essential for enthusiasts and professionals. - Precision Zeroing, Less Waste: Swiftly aligns sights to bore, minimizing cartridge waste. Saves time and costs, an ideal solution for hunters. - Easy to pack and travel: Its small and lightweight design make it a convenient and portable accessory for shooters who require efficient zeroing and improved accuracy in the field. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001C3Q9BI | | Best Sellers Rank | #43,242 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #47 in Hunting Boresighters | | Brand | Sightmark | | Brand Name | Sightmark | | Color | .40 S&W | | Compatible Devices | Handgun | | Customer Reviews | 4.1 out of 5 stars 5,081 Reviews | | Global Trade Identification Number | 00810119011220 | | Included Components | Batteries, Carrying Case, Carrying case, Battery pack | | Item Dimensions L x W x H | 9"L x 5.5"W x 1"H | | Item Display Dimensions | 9 x 6 x 1 inches | | Item Display Weight | 0.02 Pounds | | Item Type Name | Boresight with Red Laser | | Item Weight | 0.02 Pounds | | Lens Color | Red | | Manufacturer | Sellmark Corporation | | Manufacturer Part Number | SM39016 | | Material Type | Brass | | Model Name | Pistol | | Model Number | SM39016 | | Mounting Type | Weaver Mount | | Night vision | No | | Product Dimensions | 9"L x 5.5"W x 1"H | | Product Style | .40 S&W | | Reticle Type | Dot | | Sport | Airsoft, Hunting | | Sport Type | Airsoft, Hunting | | Style | .40 S&W | | Thread Type | 1/2"-28 | | UPC | 810119013699 810119011220 | | Unit Count | 1.0 Count | | Warranty Description | Limited Lifetime Warranty | ## Product Details - **Brand:** Sightmark - **Color:** .40 S&W - **Compatible Devices:** Handgun - **Item Weight:** 0.02 Pounds - **Material:** Brass - **Mounting Type:** Weaver Mount - **Night vision:** No - **Product Dimensions:** 9"L x 5.5"W x 1"H - **Sport:** Airsoft, Hunting - **Style:** .40 S&W ## Images ![Sightmark Pistol Boresight with Red Laser - Image 1](https://m.media-amazon.com/images/I/61vCyjraB+L.jpg) ![Sightmark Pistol Boresight with Red Laser - Image 2](https://m.media-amazon.com/images/I/91Mmz+coVXL.jpg) ![Sightmark Pistol Boresight with Red Laser - Image 3](https://m.media-amazon.com/images/I/81fr-8fJwkL.jpg) ![Sightmark Pistol Boresight with Red Laser - Image 4](https://m.media-amazon.com/images/I/81lanMcB4gL.jpg) ![Sightmark Pistol Boresight with Red Laser - Image 5](https://m.media-amazon.com/images/I/81QIqV2NrbL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by E***A on April 14, 2026* After reading negative comments in the review I was skeptical about this 9mm bore sight. I bought a 223 bore sight from them years ago and worked flawlessly sighting in my Eotech, it was dead on out the box. I have 5 handguns with various optics on them that I sighted in already. I was already happy with my zero and wanted to see how close this bore sight was. What I noticed was that my windage was dead center on all my handguns and my elevation was off by a few clicks. I took out the bore sight multiple times and rotated it to see if it moved away from my zero. Every time it was still at dead center and the lazer did not move direction. I was surprised how accurate this lazer is. It was pretty damn close to all my zeroes. I wish I had this from the beginning. It would of saved me a lot of time and ammo. I can honestly recommend this product. P.S. I tested this at 20 yards. I hope this helps ### ⭐⭐⭐⭐⭐ Very Handy! *by C***0 on February 28, 2016* I bought the 9mm version. I used it to adjust the iron and red dot sights on a 9mm carbine at 25 yards. The laser is only so bright, so you're either going to have to do this indoors, or outdoors on a less then bright sunny day. My unit came with 2 AG5 batteries. It will also accept 3 AG3 batteries. There is no on/off switch, when the batteries are in, the unit is on. I suggest you take them out when you're done. I had mine running for about 45 minutes on the batteries that it came with without noticing any change in the lasers brightness. After sighting in the iron sights at 25 yards, I experimented by rotating the boresight in the bore 90 degrees at a time to see if the laser was still aligned with my sights. I noticed no difference at that distance. My red dot is mounted on an American Defense quick detach mount. It was interesting and educational to use the laser to sight in the red dot. After my initial sighting in, I used my hand to flex and twist the sight on it's mount while it was attached to the rail of my gun. Guess what? It was clear I needed to tighten my mount! Then I used the laser to see just how well the red dot would hold zero when repeatedly removed and replaced on the weapon. Again, at 25 yards, I couldn't tell a difference. Finally, as I had done with the iron sights, I rotated the boresight 90 degrees in the bore, rechecking it each time against the red dot sight. Everything looked good! After all that, I switched to live ammo to check my efforts. I was off about half an inch high to the right. Fantastic results as far as I'm concerned! I'll sort out the rest at the range. I consider what I paid for this device money well spent for what I've used it for so far. Mine was a tad tight in the bore, even after cleaning the bore carefully and applying a VERY light coat of oil, I still had to use a pair of needle nose pliers to carefully extract it each time I removed it. I don't consider this an issue, just passing along my experience. EDIT: April 10, 2016 - Just a quick note on batteries, The second time I took this thing out to use it, the original AG5 batteries it came with were dead. The laser came on when I put them in but before I could use it, it sputtered out. I had bought a package of 10 Maxell AG3 batteries at the same time I ordered this boresight so I put in 3 of them. They lasted 10 minutes at best! I don't know exactly what to make of this information. Are two AG5s inherently better then three AG3s? Are the Maxells I bought just old or crappy? This much I can tell you, you gotta work quick to get anything done in 10 minutes... ### ⭐⭐⭐⭐ It worked good to "generally" get the green dot in the right ... *by C***S on August 28, 2014* I bought this bore sight to sight in my new green laser. It worked good to "generally" get the green dot in the right area. You will still need to actually fire some live ammo to do the final adjustments on your laser. Laser bore sights are good, but nothing compares to actually putting some lead down range. Like others have stated in other reviews, if you un-chamber the bore sight and then re-chamber the bore sight, your red dot WILL be off a little bit. At 21 feet, mine was off by 3" on an indoor wall target. So what I ended up doing was to actually do multiple "sights" on the wall target from 21 feet. I would sight in the green laser aligning it with the red bore sight laser, then mark on the target with a black marker the exact point it touched (helps to have a second person to mark the black dots), then un-chamber and re-chamber the bore sight and repeat this 5 times. I ended up getting the green laser and red bore sight laser within 1" no matter where in the barrel the red bore sight was. And now, take it to the range and fine tune your green laser. I gave this bore sight a 4 star rating because of the inconsistantcies in the laser position. This tells me the red laser is not perfectly inline with your gun barrel. This bore sight is pre set from the factory and can not be adjusted. It is close, but it is not spot on. For the price, I guess I can't complain too much! I do recommend this laser, but if you want one that is more precise, you are going to have to fork over a lot more cash. 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