Holosun RML Rail Mounted Laser
Holosun's new RML Rail Mounted Laser
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Holosun just introduced their new RML Rail Mounted Laser. It’s tiny and affordable and will come in both red and green laser versions. The RML will come in five models with MSRPs ranging from $105 to $162 and is expected to hit stores in March or April.

Here’s their press release . . .

Lasers are becoming invaluable to verify an accurate and effective aim, especially in low-light environments. Pistols and rifles fixed with lasers have been shown to improve fast target acquisition. With the growth of red dot optics, lasers have fast been growing in the industry as an alternative to mounted optics. Not only does this help to improve users’ response time, but it also makes a potential Point of Impact clear.

Holosun RML Rail Mounted Laser
Holosun is known for optics and lasers. This year, Holosun releases the RML (Rail-Mounted Laser). The RML comes in at a very manageable 1.97″×1.18″×0.91″ and 1.3 ounces. Made with a durable polymer housing, the RML is IPX8 rated for water and dust resistance. Additionally, Holosun tests each unit to 2,000G shock resistance. This guarantees that the RML is suited for use in extreme environments.

The RML is available in either a red or green laser version, both of which are class 3R and <5mW output power. The RML package includes one CR1/3N lithium battery. The laser can be adjusted by 4MOA per click and can travel a total of +/-60 MOA. The rate of travel makes it ideal for a primary or even secondary zero, providing an alternate distance point of aim from iron sights or a pistol mounted optic.

Holosun RML Rail Mounted Laser
With many features, it is easy to see why the RML is a strong contender. Holosun has made it easy to utilize the laser in multiple roles with multiple color options. For the hiker who carries a defensive pistol, the uniformed officer that relies on an alternate color laser and red dot, and everything in between, the RML fills their needs.


  • 520nm Green or 635nm Red, class 3R laser
  • Cr1/3N removable battery
  • Durable Polymer housing
  • 4 MOA adjustment per click
  • +/- 60 MOA laser W&E travel range
  • IPX8 water & dust resistance
  • 2000G vibration resistance
  • Dimensions: 1.97×1.18×0.91
  • Weight: 1.8oz


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  1. Wasn’t there just an post about Holosun the other day? I could be mistaken, but if so, this is what I’m talking about. Not impressed with TTAG coverage of SHOT so far and I’ve been to a few. Just don’t like Vegas.

  2. Holosun is made in China. Most times you don’t have a choice, but this is one of the times you do. It’s your choice to make.

  3. I’d take 3 of them and use them to bore sight. Put the reticle inside the laser dot triangle and save whatever ammo would have been needed to get on paper. And less finicky that those in-chamber bore sighters.

  4. I uses lasers of some of my rifles with a parallel zero, I like using them on rifles. But for handguns I don’t use them on the ones I would carry, normally carry a Glock 22 .40 cal (without laser) but sometimes I switch.

    Ya ever tried to find a suitable comfortable conceal carry holster for a handgun with a laser mounted underneath like this one? Yeah, that’s why I don’t use lasers on my carry guns.

    • Yes, holsters designed for (some) lights can work, but the key words here are “suitable” and “comfortable”.

      As in: It is suitable and comfortable for your style of carry where you carry on your body?

      Anyone can get a conceal carry holster and stick it inside their pants or hand it on their belt, but is it what really fits how you want to carry and does it do so comfortably?

  5. You can “pre order” this laser look like….

    Holosun Rail Mounted Laser > $84.99 > https://gunmagwarehouse.com/holosun-rail-mounted-laser.html?avad=9441_b26389c15

    “New in 2022, the Holosun® Rail-Mounted Laser (RML) is a compact laser system, designed to deliver quick, intuitive target acquisition and identification in virtually any environment. Adaptable for both pistol and rifle shooting applications, this weapon-mounted laser system is available in both red and green configurations and features ambidextrous controls for reliable operation with either hand. The impact-resistant polymer housing offers unmatched durability and reliable corrosion resistance, while built-in windage and elevation adjustment turrets allow for quick, intuitive zeroing. If that’s not enough, this laser system is IPX8 waterproof for lasting field service in harsh, corrosive tactical environments. Order today!”

  6. I have a few TruGlo micro-laser units mounted on range/home defense handguns. These are fun on range days.

    All three were installed and rough adjusted/sighted by getting the dot on top of the front sight while viewed on a wall 50ft away. Had me within 1″ @ 10yds every time.

    These work great for helping to recognize and correct poor trigger cycling. The dot on the wall shows any “point shifting” during trigger cycling.

    They aren’t up to the quality level of the SureFire X400U light/laser on my HK Mark 23 SOCOM, but they’re only ~1/8th the cost.

    These small lasers are great for trigger training, are fun on range days, and don’t cost much.

    • I had a SureFire X400U. Didn’t hate it fully, but sure didn’t like it a lot. The laser would need re-zero after three or four magazines and the light was fine but the switch quit working a couple of days after I got it. They offered to exchange it, but I didn’t trust it by then so went for a refund.

      • I’ve had good luck with the X400U on the Mark 23.
        Initially installed/zeroed it on an HK USA rail adapter, held zero fine. Even shot 45 Super.
        Then installed/zeroed it on a Lobos Ind. rail adapter. Been holding zero even removing/installing for each use and 45 Super.
        If there’s ever an issue with it, SF warranty/CS is tops in the industry.

  7. Um. . . perhaps it’s time to find another acronym for this contraption. Maybe, ‘GLT’ for ‘gimmicky laser thingy.’ Or ‘SBT’ for ‘shiny blinky thingy.’

    “RML” stands for Rifled Muzzle Loader, and applies to heavy cannon. It’s been that for well over a century.

    • “RML” stands for Rifled Muzzle Loader – only in that context.

      It can be used for anything, like all acronyms …

      “RML” also used as an acronym for ‘Regional Medical Laboratory’ in Ponca City, Ok.

      “RML” also used as an acronym for ‘Replay Markup Language’ in SQL programming.

      “RML” also used as an acronym for ‘Rogers Memorial Library’ in Southampton, NY

      “RML” is also the name of a company > http://www.rmlsite.com/news.html

      and now “RML” is an acronym for Holosuns ‘Rail Mounted Laser’

      and the list goes on and on. Do you want all of them to change their names to something else because its used a certain way in the context of ‘Rifled Muzzle Loader’?

      Maybe for the ‘Regional Medical Laboratory’, we can call it “Test Tube Place”, ‘TTP’… oh wait… ‘TTP’ is used as an acronym for ‘Thrombotic thrombocytopenic purpura’ which is a rare blood disorder but maybe we can call that ‘Broken Blood Thingy’ ‘BBT’ … oh wait …’BBT’ is used as the name of a fiber internet company…


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