TrustFire GM21 Pistol Light 510 Lumens Gl ock Weapon Rail Mounted Flashlight Bright Gun-Light USB Rechargeable Quick Release Compact

This light is amazing! I have multiple other TrustFire flashlights for home, work and EDC. When I saw this weapon mounted light, I knew I was going to get a high quality product. TrustFire didn't let me down. I currently have an Olight pl-mini Valkyrie 400 lumen weapon light mounted on my Glock 19 that I compared this TrustFire GM21 to. First, I'd like to list some of the similar features of both lights. They both mount with a quick release lever and both come with a Glock and 1913 picatinny rail adapters. Both have ambidextrous switches and built in batteries with indicator lights. They both seem to be equal in size and weight. Time for the differences between the two. THE PRICE!!! I paid close to $100 for the olight and only got 400 lumens. The GM21 is about $40 less and offers 510 lumens!!! When compared side by side, the GM21 has a brighter, whiter and more focused hot spot than the olight. The light spill is less than the olight and the beam reaches out farther as well. One main feature I like on the GM21 is the micro USB charging port. You can charge this light pretty much anywhere without carrying around a proprietary magnetic USB charging cable like the one olights come with. One more thing I have to mention is the ease of operation. The olight requires the user to push down on the switch while the GM21 is a press in style which feels more natural. The GM21 switch has a nice tactile feel when pressed and features a steady on and momentary function. I'm really glad that TrustFire left out all the bells and whistles that other lights come with like strobe function and selectable brightness. I really like how simple the light is and how easy it is to operate. I took it out to the range and fired about 300 rounds of 9mm. The light stayed on for about 40 minutes before the red led lit up indicating a low battery. Not once did the light flicker or shut off after continuous rounds. I also performed a 4 foot drop test into solid concrete and the light stayed on without any issues. Charging was fast with a 3.4 amp USB charger, although I don't really recommend using a high amp charger all the time as it will reduce the battery life. Over all, I recommend the GM21 for anyone who wants a weapon mounted light on a budget. I will keep this light on my home defense/EDC pistol.

This gun light is perfect. The product came in great time un-damaged. The Packaging was intact and all parts where in there. The light itself I love. It is not to bright where it is blinding you when you point it at a wall and can not see your target, but it is bright enough to light up the hallway and the rooms around it. The light came with a charge and worked immediately. There is a LED charging indicator that is on it so when it is charging you can see if it is charged or not (nice feature). It is able to charge when still on the weapon. The tails when’re you click the buttons to turn on are in perfect placement. If you hold it is momentary and it you click it then it is on. I love that there is not a strobe mode on it. If I could make two small suggestions it would be 1 if there could be a lock out mode, so during transportation you are not worrying about it turning on. The 2nd if the bar that clicks into the picatinny rail was adjustable back and fourth and could work on more guns. Other then that this light is perfect and exactly what I was looking for.

Good light for the money, the QD is so tight that you need a lever to pry it off. A good thing imo. The light has one setting -blinding and the battery lasts for about 2 hours. Not a huge deal to me, but its something you have to keep in mind. Light switches are Olight, so good there and the charging port is standard Andoid instead of the proprietary magnetic charger. Both pretty good for me since i have a galaxy and carry a charger with cord. Overall, it's a pretty poor light for combat, but a good light for self defense.

I usually try to find the best deals for equipment, especially when it comes to firearms. I was a little skeptical at first but I can say you will get your BANG for your BUCK with this light. Feels well made, it's pretty bright! It fits perfect for my m&p 2.0 compact! I can't wait to test it out in the field and hopefully it doesnt slip off the pistol. So far, I dont believe it will. Only downside is that it's a 45 min lifespan. But if I need longer life in a light I'll just use a flashlight. No complaints here!

My pistal

I’ve had the pleasure of putting this light through its paces and I am thoroughly impressed with its build quality and features and pleasantly surprised that such a small and compact light can pack a big punch! It’s a very, VERY bright light. Boasting 510 Lumens, it can light up a room or hallway effectively in a home defense situation. The beam is wide and focused but isn’t super concentrated and spreads out a bit so you don’t get blinded when you turn it on. The ambidextrous controls feel natural and are very easy to reach and activate. Unlike other lights that require multiple touches to cycle through different modes, the controls for this light are straightforward: ON, OFF, and Momentary On. The last thing that anyone should be worried about is how to turn on their light during an emergency. With the GM21, you simply push the switch, it turns on. When you hold it, it’s momentary on. Simple. Effective. Another feature that I absolutely love is the built-in Micro USB charging port… You’ll never have to replace batteries ever again! I have owned lights that require you to change out batteries every so often and in essence this is ok… if you have the time to do it. The problem with this is that there is very little or no indication of when you’re going to run out of juice and nobody wants to be in situation when they need a light and the darn thing doesn’t work. This isn’t the case for the Trustfire. There is a charge indicator to let the user know when it’s time to recharge and when it’s full, and once it’s green, I can be confident that I have at least 40 minutes of illumination if the need arises. I would have like to have seen a plug for the charging port to keep dirt and debris out of the socket but running the light as hard as I did for a week, I haven’t managed to get anything lodged in there so I guess it’s not really a big deal. If you are looking for reliability, great build quality, and an easy to use weapon light, look no further. The Trustfire GM21 is for you. To Summarize: Bright (510 Lumens) Solid Construction Lightweight Ease of Use Durable Built-In Battery/Charging Port

I am really impressed with how much light this gives out and the ease of use. The light switches are perfectly place. The quick release works well right out of the box. The only issue I see is that the USB cap isn't permanently attached to light. The first time I took it off it popped off and I had to search for it on the floor.

You need to charge this thing everyday! It’s unpractical! Battery won’t last a day even if you don’t use it, Poor battery life, not worth it.