[Drago]

I have a P516 that has been stamp approved as an SBR. It's the 10" upper. Is there a way to convert it to a long gun (say 20" bull barrel) for my coyote hunts out beyond 150 yards? Forgive my ignorance, but I'm wondering if I can purchase a piston upper that can slip right onto the existing lower I have now? Does Sig make anything like that or I'm interested in any suggestions.

 

[Gsx6bolt]

Here's something that Sig offer but a pricey though..

https://www.sigsauer.com/store/sig516-gen-2-upper-receiver-assembly-complete-16-in-semi.html

 

[northlight]

Lots of options...

...shop around for completed uppers with 20" full-floating heavy barrels.

Most mil-spec uppers will fit right on your 516.

You could also consider building one yourself...lots of videos to help you.

Northlight