Abstract: Firearms and barrel assemblies are provided herein that include a barrel assembly having a barrel having a proximal end and a distal end comprising a muzzle. The barrel also includes a chamber defined in the proximal end. The chamber includes a distal end and a proximal end. A bore extends distally from the distal end of the chamber. The bore defines a central axis of the barrel assembly. The barrel assembly also includes a barrel extension extending from the proximal end of the barrel. The barrel extension has a distal end and a proximal end. The barrel extension defines a bolt receiving recess in communication with the chamber. The barrel extension further has a barrel vent channel defined therein in communication with the bolt receiving recess. The barrel vent channel is defined in the barrel extension in a direction that is transverse to the central axis of the barrel assembly.

Abstract: Ejection assemblies, actions including such ejection assemblies, and firearms including such actions and/or ejection assemblies are provided herein. At least one ejection assembly is provided that is configured to facilitate forward ejection of spent cartridges when a forward-ejection guide cover is in place on a receiver, and to allow for side ejection of spent cartridges when the forward-ejection guide cover is out of place on the receiver. Such a configuration may allow for reliable ejection and access to the action for clearance of jams or malfunctions while providing flexibility with forward or conventional side ejection.