Streamlight TLR Keys

Streamlight TLR-2 Mounting to a Sig Sauer P226 MK25 11

Sig Sauer P226 MK25 with Streamlight TLR-S2I like my Streamlight TLR-2 tactical light (a full review is coming eventually). Among its many positive attributes is the fact that it ships with four mounting “keys” that allow the light to be fitted to a wide variety of accessory rails.

And, since my Sig Sauer P226 MK25 comes with true 1913 Picatinny rails, I naturally chose that mounting key for use with my P226. I noticed, however, that the light’s switch mechanism was just out of reach of my right trigger finger… meaning I had to activate the light and laser with my left thumb. That’s something I’m sure I could eventually get used to, but because it’s not how I’ve trained, it felt strange. My Insight M3 tactical light was a better fit, with the switch just barely closer to my trigger finger, but removing the M3 from the Sig’s rails required too much force. Then there’s the fact that the M3 already lives happily on my Glock 17, which is where it wants it to stay.

Glock 17 with Insight M3 tactical light vs. Sig Sauer P226 MK25 with Streamlight TLR-2s

Glock 17 with Insight M3 tactical light vs. Sig Sauer P226 MK25 with Streamlight TLR-2s. Notice the extra space between the rear of the Streamlight and the Sig’s trigger guard.

I’d all but given up on using my TLR-2 with my Sig, until I remembered that the Streamlight came with extra keys. I went down to the workshop to dig out the Streamlight box from my accessory cabinet and took another look at the other mounting keys that came with it.

Streamlight TLR Keys

Streamlight TLR Keys: Glock (Universal), 1913, Beretta 90two, and S&W 99/TSW.

I noticed that the Beretta 90two mounting key was similar in size to the 1913 key, but the exposed key portion was slightly forward vs. that of the 1913 key. I swapped in the Beretta 90two key and remounted the TLR-2 on the Sig P226 MK25.


The light is still mounted securely, but sits just slightly farther back toward the trigger guard — and now perfectly within reach of my trigger finger.

So if any other shooters are dealing with their Streamlight TLR-2 being just out of reach when using the standard 1913 rail key, try swapping it out for the Beretta 90two key. It just might make all the difference you need!

  • Why do you need this gun? And why would you need a tactical light attached?

    • Hi, Erawpd. Are you asking why, in general, anyone would need any gun? Or are you asking why I, in particular, would need this particular gun? I suppose for simplicity’s sake, I can answer both. In general, good guys need guns because bad guys carry guns and try to do bad things with them. In particular, I carry a gun in case a bad guy with a gun tries to do something bad to me or others around me. Regarding why I chose this particular gun, it’s because I like the magazine capacity of a full size 9mm pistol, I like the SA/DA of this gun, and the overall feel while using it. As to why I would need a tactical light attached, it’s because sometimes bad guys do bad things at night, or in dark places, and using my gun in defense against them is much easier when I can illuminate them. I hope that “sheds some light” on your questions. 🙂

      • Chris

        I agree with erawpd. Why not sell that evil gun and get yourself a a pair of Birkenstocks and a nice acoustic guitar. Then, when one of these “bad guys” (who apparently wouldn’t be able to get a gun if they were all banned) attacks you, you can Kumbaya them into submission.

        • Although I’ve heard that just flashing a peace sign and singing the chorus of “Give Peace a Chance” will automatically stop any violent crime, too! 🙂

          • Chris

            Oh absolutely! Guns are HIGHLY overrated. Nobody EVER uses a legally owned gun for home protection or stopping a violent crime of any sort! Look how great the gun control has worked in Chicago and Washington D.C.! They have hardly any murders or other crimes with illegal guns involved. Its like one giant Gun Free Zone! Criminals ALWAYS obey the gun free zones.

    • Rob

      Thanks for the review! My TLR-2 came today, my P229 comes Monday, and my P226 will hopefully come back from Sig in the next few weeks. I plan to mount this on the 226 as it will be within reach of my bedside. I had never considered a tac light until someone asked me “If you’re going to keep a firearm in your room, what are you going to do in the middle of the night when you hear a noise? Are you going to reach for a flashlight first, or will you reach for a firearm first? What if you make the wrong decision?”

      With 630 lumens and a seizure-inducing strobe with laser precision, I’d rather have both.

      Again, thanks for the review!

  • Grant

    I love it, I have a Glock with tactical, laser with extended mag, it is nice taking everything off at times and feeling the difference, just one of my pieces….I’m close to getting a Sig…one of these days…also have .380 for my concealed piece, unfortunately Glock is too big, but works for home defense!
    I say Give Peace A Chance, Buy A Gun!!!!

    • Rob

      Grant, I see your post is over a year old, I hope you got your Sig! If not, check out

      I got both of mine from them. Both LE trades with little to no wear. My 229 was never even issued so there were ZERO signs of wear, and not a nick or scratch on it. The price was more than right and their service is outstanding!

  • T_tate

    Thank you so much for this. My trl2s actually flew off my p226 with the wrong key in it. Appreciate the insight!

  • jeremy

    I LOVE!!!! My sig mk 26, just wish they made the contour button for the tlr like for the glocks. Everything for the glock nothing for sigs or left handed shooters.

    • Jeremy Greer

      Sorry mk25