Hello...so what is the stock guide rod pounds for a sd40ve? I hear so many answers.....also does anyone know what kinda ammo they test it with at the factory? I`m asking about the guide rod cause i wanna replace with stock poundage in stainless steel.....or should i be changing to different lbs....Thanks Bill

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Apex spring & trigger kit

Why do you want to change what's in there?

Hi.....I just like stainless better than plastic.....looks better...i`m sure lasts longer..plus you can adjust the lbs on the guide rod to fit the ammo you are using better if wanted...reduce rise

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Apex spring & trigger kit

Okay.

There's a few threads in here on aftermarket recoil spring assemblies that might interest you.

Id be careful , there are reports of replacement RSAs breaking some SD40s