Flashlight lifespan

I put this stream light TLR-7X on my FN Reflex and it overlaps the barrel a little bit and it seems like it takes a whole lot more damage from the gun powder and the blast than my other lights that do not overlap the gun barrel .

Could this significantly impact the lifespan of my flashlight ?.

I put this stream light TLR-7X on my FN Reflex and it overlaps the barrel a little bit and it seems like it takes a whole lot more damage from the gun powder and the blast than my other lights that do not overlap the gun barrel .

Could this significantly impact the lifespan of my flashlight ?.