Recently picked up one of these from a local guy but is missing the buffer and spring. First, I’d like to mention Stike customer service is poor at best. Can’t reach them via phone and waiting DAYS for a reply.

I found this buffer and spring on their website and just want to confirm this is what I need.

Strike pistol flat wire spring

https://www.strikeindustries.com/si-ar-fws-p.html

Strike buffer

https://www.strikeindustries.com/part-strike-pdw.html