I mean his list of requirements. 99% of the people who bitch about materials used in firearms know fuck all about them.It does have prefix. It takes Zermatt prefit barrels. Also the materials are on the Aero precision website
Materials:
- Receiver body- 416 stainless steel
- Bolt- 17-4 stainless steel
- Firing pin- S7 tool steel
Same for the prefits. A lot of us DGAF if it uses nut or shouldered prefits but a few here act like it's the end of the world if it needs a nut.