The Best Weapon Lights for Sig P365

You just got home after buying your brand new Sig Sauer P365. You remove your newly acquired subcompact pistol from the case and immediately realize you are missing one crucial tool when it comes to concealed carry weapons. That’s right, the mounted weapon light. You cannot effectively engage what you cannot see.

best weapon light for sig p365

There are different models (Standard, SAS, and XL) of the Sig P365. The Sig P365 is a subcompact handgun with its proprietary accessory rail. That being said, you will have more of a difficult time finding a dependable compact weapon light than you would with a full-sized duty handgun.

There are a lot of things to consider when choosing a weapon light for your Sig P365. Who is it made by? How good is the ruggedness? Is it water-resistant? How holster-friendly is the weapon light? Is the construction aluminum or polymer type plastic? How many lumens does it emit?  Below you’ll read about arguably four of the best-mounted weapon lights you could buy, along with answers to each of the questions mentioned previously for each light.

Below are the best weapon lights available for the Sig Sauer P365.

SureFire XSC Micro-Compact

The SureFire XSC Micro-Compact weapon light found on excels at what it was intended for. The construction of the light is primarily aluminum with some polymer. This makes for increased ruggedness and reliability if dropped or knocked around. This extremely small light weighs in at a minuscule 1.7 ounces.

Additionally, the overall length of the light is 1.94 inches. Expect the bezel of the light to extend slightly beyond the tip of the muzzle. Don’t be fooled by the size and weight of the light. This compact device pumps out 350 lumens, reaching out to just about 90 meters. The light emitted from the SureFire XSC is white as opposed to the dull yellowish tone you commonly get from cheaper mounted lights on the market.

The SureFire XSC weapon light has a waterproof rating of IPX7. This means it can be submerged in water up to one meter deep for 30 minutes and continue to function normally. This is due to the multiple gasket seals that ensure water stays out of the vital areas of the light. SureFire’s design of this light also includes two settings, momentary-on, and constant-on.

Finally, the light comes with a charging station to recharge your light when not in use. Essentially, you will not need to waste time hunting for the correct battery to ensure your light is still operable.


  • The light is made by SureFire. A company that is known and reputable for making great weapon mounted lights.
  • The battery is rechargeable.
  • The light is extremely small with a high lumen output which will not hamper the ability to conceal the pistol or risk sacrificing functionality for comfort.
  • Both momentary-on and constant-on options.


  • Price point. For those who are budget-oriented, $329.00 for a light is too steep to ask for. Thankfully, you can find deals out there, like oncom, and save a decent bit.
  • Although a rechargeable feature is beneficial. You must remain mindful of what level your battery is at and charge when needed.

Sig Sauer Foxtrot365

The Foxtrot365 weapon light was created for the singular purpose of complementing the Sig P365 handgun. It was designed to function flawlessly when concealed on the body, and all of its functions revolve around that.

The construction of the design is primarily polymer, which helps to keep the weight extremely low. With batteries installed, this light is only 4 ounces and has a length of 3 inches. The LED bulb emits a white light at 100 lumens to help identify targets at close range. This light connects to the rail of the P365 and fuses to the trigger guard where the activation switch is.

Sig Sauer understood the extreme stress and loss of fine motor skills an individual exhibits when placed in self-defense encounters. They decided to go a different route as opposed to using toggle buttons for light activation. The Foxtrot365 is pressure activated by a button located at the grip of the firearm;  right below your middle finger.

You will not need to compromise your grip to actuate a toggle switch or hope to remember to use it when drawn. The light will activate as soon as the pressure from your grip is applied. The light uses CR123 batteries and has a constant runtime of approximately 30 minutes.


  • The Foxtrot365 is arguably priced affordably for even the most frugal of individuals.
  • As minimalistic as it gets. This light foregoes all fancy functions and is, at its core, a dedicated concealed carry weapon light. You will not need to remember if a momentary-on or constant-on option is set. You will not need to worry about a strobe function if you press the activation switch twice. Simply squeeze and the light is on. Loosen your grip and the light is off.
  • Ease of activation. Self defense encounters involving the use of a firearm end very fast and are often extremely overwhelming. Loss of fine motor skills and tunnel vision set in. All you need to do to activate this light is squeeze the pistol grip.
  • Battery replacement. CR123 batteries can be found at virtually any store.


  • Battery life. The Foxtrot365 has a reported battery life of 30 minutes for constant use. While most self-defense encounters will never last beyond 60-seconds, the battery life could be improved.
  • Material construction. The light is made of mostly reinforced polymer as opposed to more durable aluminum.

Streamlight TLR-6

The Streamlight TLR-6 weapon light packs a huge punch for its compact profile. The TLR-6 was created with both left and right-handed users in mind. It comes equipped with an ambidextrous on and off button. The device is constructed of impact-resistant polymer which has been tested to endure drops up to 1 meter.

The LED bulb emits a white 100 lumen light and has replaceable batteries as opposed to fixed, rechargeable batteries. The batteries are lithium CR1/3N which can be found at virtually any Walmart, Home Depot, or Lowes.

Additionally, this light will mount snug and streamline to the Sig P365 creating a snag-free performance when drawing and holstering your sidearm. Furthermore, you are given two options when activating the light, momentary-on, and constant-on. A single press of the button will activate constant-on while a press and hold will activate momentary-on. Finally, the total runtime for this light is about one hour.

The TLR-6 as well as several other Streamlight lights and lasers have found their way into our “best of” lists for very good reason.


  • Price point. This light can routinely be found for under $100.
  • Ambidextrous controls. The ability to activate the light on both sides helps to activate the light when shooting with your dominant hand or weak hand .
  • Battery replacement. Batteries can be found at most stores.
  • There are multiple models of the TLR-6. Light only, red laser only, and laser-light combination.


  • Light output. The light emitted from the TLR-6 is great indoors, however outdoors it will only reach to about 20 meters effectively.
  • Battery replacement. The battery compartment is difficult to open.

Streamlight TLR-7 Sub

The Streamlight TLR-7 Sub Ultra-Compact weapon light is essentially the big brother of the TLR-6. The TLR-7 features an ambidextrous on and off switch in addition to constant-on and momentary-on abilities. The device is constructed of aluminum and holds a waterproof rating of IPX7.

This light will virtually survive any amount of hard abuse that is thrown at it. In addition to its sturdy design, the TLR-7 Sub has a built-in “safe mode” to prevent accidental activation of the light. Instead of the 100 lumens that the TLR-6 offered, the TLR-7 Sub offers a blinding 500-lumen output of white light.

This light can effectively reach out to about 120 meters and run consistently for roughly 90 minutes. To add to that, only needing one CR123A battery makes this one of the best lights on this list. The length of this light is 2.51 inches and weighs about 2.39 ounces with batteries included.


  • The aluminum construction coupled with the waterproof rating makes this light undeniably reliable and rugged.
  • Ambidextrous on/off switch.
  • Battery Life. 1.5 hours of run time off of 1 battery from a light emitting 500 lumens is impressive.
  • Safe-off function. This feature will save your battery life when the light is in storage by preventing it from turning on. Additionally, this feature ensures you will activate the light by accident when the firearm is drawn.


  • This light can get hot when used for long durations. Holstering into an IWB holster may cause complications.
  • Depending on where you go, this light can get expensive, well beyond $200.00.

Final Thoughts

There are numerous weapon lights out on the market claiming they are the best. Unfortunately, compared to the weapon lights on this list, they do not stack up in the slightest. Each one of the lights mentioned above outperforms the competition in reliability, ruggedness, ease of use, lumen output, and durability for use with your Sig P365.