Originally Posted by Mr.Hitman
What I think is your BBU, the piston head o-ring is creating friction and have seem to froze up in your nozzle.
Take your slide apart and test the nozzle. Move it out and let it return back in.
If it's really stiff, take it apart, re-lube and try again.
Ah. Stock TM piston. Yup... that could give you issues - then again, I have no experience with a 100% TM M1911/MEU. Good luck. CAPS people tend to know what they're talking about - listen to them lol.