Abstract: Assemblies, suppressor assemblies, firearms, tool sets, methods, and/or the like are provided. In some embodiments, a tool set for assembling and/or disassembling a suppressor assembly may include a first wrench and a second wrench. In some embodiments, the first wrench includes one or more teeth configured to engage a plurality of annularly arranged protrusions disposed at or proximate a distal end of a suppressor assembly, the plurality of annularly arranged protrusions defining recesses therebetween. In some embodiments, the second wrench includes one or more wrench engagement surfaces configured to engage one or more corresponding suppressor engagement surfaces disposed at or proximate a proximal end of the suppressor assembly.

Abstract: Provided are a trigger assembly, firearm, and various methods and components. An example assembly includes a lower trigger body comprising a trigger lever; a disconnector rotatable relative to the lower trigger body; a trigger tower rotatable relative to the lower trigger body and the disconnector, the trigger tower defining a trigger tower hook; and a hammer defining a hammer sear hook configured to engage the trigger tower hook to hold the hammer in a cocked position. In response to application of a force to the trigger lever, the lower trigger body may rotate and cause the trigger tower to rotate to release the trigger tower hook from the hammer sear hook.

Abstract: A bolt assembly that includes a bolt defining at least one bolt opening and an extractor that is configured to pivot relative to the bolt. The extractor may define at least one extractor opening. The bolt assembly may include a pin positioned within the at least one bolt opening and the at least one extractor opening. The bolt assembly may include a retainer that is positioned inward relative to an exterior surface of the bolt assembly. The retainer may be removably coupled to the pin.

Abstract: A cam race comprising a hardened material (harder than a material of an upper receiver) is provided to increase durability of a firearm. The cam race is fit within a groove within an interior sidewall of an upper receiver of the firearm. The cam race comprises a body that is fit within the groove, and a plurality of fastener pins extending away from a rear face of the body that fit within corresponding through-holes of the upper receiver. Distal ends of each of the fastener pins are deformed to form a riveted connection between the cam race and the upper receiver. The cam race defines a slide face along which a cam pin of the firearm slides during a firing process, thereby increasing the durability of the firearm against undesired formation of defects within the interior sidewall of the upper receiver.

Abstract: A stock for a firearm includes a mount, a first member, and a second member. The mount is configured to be coupled to a main body of the firearm. The first member is configured to move along a longitudinal axis defined by the firearm relative to the mount. The second member is configured to move along the longitudinal axis relative to the first member.