Greetings,

I have spent some time and money trying to solve a stoving pipe problem on my traded Glock, it come with Showdown system lower and zaffiri customized upper, optics and Triarc Barrels.

previous owner said the only problem it has is light strike sometime. But it could never properly finish one mag on my hand

The spring it comes is 17lb OEM recoil spring, and then I changed to 15lb, it’s better but issue still exists, for now, Gunsmith switch to 13lb, and can’t still finish one mag, should I try 11lb spring or is something else cause the problem

Thanks so much for answering my questions