The action features a large gas relief hole at the bolt body designed to protect the user's head in case of a primer or cartridge rupture or detonation.
2.
The action features large gas relief holes and a gas shield on the bolt sleeve designed to protect the users head in case of a primer or cartridge rupture or detonation.
3.
The action features two large oval shaped gas relief holes and a gas shield on the bolt sleeve designed to protect the users head in case of a primer or cartridge rupture or detonation.