Anyone that's into ARs knows how expensive weaponlights are. After looking online, I believed I could put together a quality package at a much lower price. Specifically, I wanted a rail-mounted light for AR type weapons with the following features:

- LED (100 Lumens minimum)
- AA Powered
- Lightweight & Compact
- Quality forward-clicky switch with lockout
- Quick & easy attachment to rail
- Dunkable (semi-waterproof)

I'm a bit of a nutter for flashlights so I knew that Fenix is easily the best value in the industry right now. The L1T fits my needs perfectly.

Fenix L1T V2.0 LED Flashlight:

- Cree Q2 LED with lifespan of 50,000 hours
- Two digitally-regulated output levels, selected by turning the bezel
- High level: 98 lumens, 1.5 hours (Ni-MH)
- Low level: constant 16 lumens, 15 hours (Ni-MH)
- Operates on one 1.5V AA (Alkaline, Ni-MH, Lithium) battery (not included), inexpensive and widely available
- Dimensions: 9.4cm (L) x 2.1cm (D)
- Weight: 45g (excluding batteries)
- Aircraft-grade aluminum body with durable type-III hard-anodized finish
- Toughened ultra-clear glass lens with anti-reflective coating
- Textured reflector for a flawless beam
- Waterproof to IPX-8 Standards
- Included holster, lanyard, two spare o-rings, and extra rubber switch boot

I like using a single AA because my Aimpoint CompM4 uses the same type of battery. Now I always have a spare.

The digital regulation on the light means it doesn't get dimmer over time. It will remain at constant brightness until the batteries are drained. Afterwards it will still give usable light for many more hours.

It has only 2 modes, selected by turning the bezel. Bright mode is selected by tightening the head all the way down and is very bright with a nice spill. Simply unscrew the bezel 1/4 turn to select low mode, which could be used for navigation or similar tasks. This mode is low enough to preserve night-adjusted vision yet is still plenty for navigation.

The mount was a little tricky. It took me a while to find the SureFire M78:

SureFire M78 Universal Clamp Mount, .8" Ring is using for mounting weaponlights to Picatinny rail. Self-adjusting clamp of SureFire Mount M-78 holds SureFire E2E/ SureFire L4 flashlights and other flashlights with .8" body diameter

I spent some time with the combo and liked it a lot ... until it broke.

The M78 mount is very fragile. It's very easy to break the polymer latch, as you can see in the last photo. I bought an M79 at the same time and promptly broke that one as well.

Conclusion: The mount is junk and the light is great.

Fenix light: ~$50
M78 mount: ~$45
Total: $95!!!!

It looks like the Larue mount will work, as long as the rings are not too far apart. I'll try this one next:

LaRue Tactical Inline Flashlight Mount LT-707

Fenix light: ~$50
Larue mount: ~$90
Total: $140! (still a deal if you ask me)

Comments and suggestions are welcome. Thanks for looking!