Gonna assemble my 1st Lower using a PSA-STR Lower Build Kit after receiving my Components/Upper Assembly today. When looking through parts to see if anything missing/buggered up, I noticed the Trigger and Hammer has the Letter "S" in a Square Box. Does this symbol mean anything, like the Receivers having a symbol on them to tell who manufactured?


Didn't find anything on my searches.

(edit) Found an older archived listing that says it is L W Schneider manufactured.

LW does not even say they make that part on their web site.

I think an industry person said in a thread they were made by this company http://www.schmidtool.com/cnc-machining-steel-trigger-military-industry.html