Originally Posted by FyrFytr998
Here's their link for all their products for the PC Carbine. I'd start with the exact edge extractor and the bolt pin set.
Probably got ahead of myself, I ordered the Extractor and the shock buffer. Bolt head pins are the next recommended buy?
If you watch his video on them, as well as look at yours. Depending on how many rounds you've put through it. The factory pins definitely start to show some wear and indentations. The pins he sells are an upgraded steel.
Are they an absolute requirement? By all means no. It's just an "if you want to" kind of upgrade.