SkinnyGrey
Member
I have an S&W M&P 15. I have noticed that if I don't lubricate it often I have some cycling problems. I cleaned and oiled it about a month ago and then when I tried firing it the a month later it started short stroking. Then I oiled it and it worked fine. How often should I lube it? Does lube tend to dry up over the course of a few weeks?