Pressure switches and manual levers
My first experiences with the M4 was with an M4 that had all of the bells and whistles on it that you could possible put there. The first thing I noticed when I mounted it on my shoulder was that the Eotech holographic sight was canted because the forearm of the firearm was not leveled properly. The second thing I noticed was that the pressure switch was coming off of the foregrip. The third thing I noticed about it was the pressure switch didn’t work. How’s that for a first time experience. I’ve learned to not point out everything wrong in the world and kindly mentioned that mounting all of the gadgets on the gun properly must have been hard. The owner mentioned that it worked for him.
I have a nice quad rail on my LWRC M6, but I have still the time or the want to actually put anything on all of the rails. I have plenty of Streamlight flashlights in my home because my experiences with them have been slightly better than Surefire flashlights. I still avoid pressure switches because they snag, can come off and they are another thing that can fail you at the wrong time. When it comes to handguns flashlights, I do like the TLR-1 up to the TLR-3 which seem to be simple and don’t have reliability issues that more complicated light setups are.