Tool steel matters. - Sharps Rifle Company Xtreme Performance Bolt XPB Carrier Group (BCG)

Ive been using these for years. Never any kind of issue. Tried a cheapy I had in the drawer. Leaked gas like mad past the seal rings. Checked the tolerances and it was out of spec and ROUGH machining. I should have checked this before using it. Had to replace it. Went with what I have had nothing but good experience with. Checked the dimensions (spot on) and installed a Lantac domed cam pin and JP spiral ring. Never be a problem again.