First 9 mm build. New to it. Based my list of parts from Internet searches.
Lower is qcircle10  small glock frame
Upper is 9 mm ASA side charge with their bolt carrier
Trigger is ALG QMS
Buffer and spring is Qbuffer 8.5 Oz and heavy wolf buffer spring
JSE 7.5" barrel

as far as the buffer and spring is that a good weight?  Should I use KNS anti rotation pins?  What should I look out for on this build?

I will have to machine the bolt carrier to work with the glock magazines and ramp it.  Will do that myself.

I'm still waiting on the upper and barrel and the 33 round glock magazines.