Abstract: A floorplate assembly with a tactile round-count indicator is disclosed. The assembly includes a floorplate, a tactile indicator, a plunger, and first and second spring elements. The floorplate is configured to be secured to a floor end of an ammunition magazine and includes a slot through which the tactile indicator moves between a retracted position and a protruding position. The plunger is operatively coupled to the tactile indicator and moves the tactile indicator to the protruding position when the plunger is depressed. The first spring element is configured to bias the tactile indicator toward the retracted position. The second spring element is configured to bias the plunger relative to the tactile indicator.

Abstract: A rail slot insert for a rail interface system includes opposing lateral sidewalls and a longitudinal slot positioned between the lateral sidewalls, the longitudinal slot permitting resilient inward deflection of the lateral sidewalls during insertion of the rail slot insert into a slot of the rail interface system. One or more tabs extend from one or both of the lateral sidewalls and are configured to be received in corresponding cutouts formed in one or more interior sidewalls of the slot. The one or more tabs thereby position and retain the rail slot insert within the slot of the rail interface system. In some implementations, the rail slot insert includes an opening defined in the longitudinal slot and configured to receive a threaded fastener. Also disclosed are accessory mounts incorporating such rail slot inserts, as well as rail interface systems including slots having cutouts configured to receive the one or more tabs.

Abstract: A lubrication device for dispensing lubricant into an interior of a firearm receiver includes an insert configured to be positioned within an aperture opening into the interior of the receiver, such as an aperture defined by a forward assist housing. The insert defines a bore configured to receive at least a portion of a lubricant container, a nozzle aperture configured to receive a dispensing nozzle of the lubricant container, and a shoulder configured to engage an actuator head of the lubricant container. The lubrication device includes a plunger configured to engage a rearward end of the lubricant container and drive the lubricant container forward within the bore. A spring is positioned to bias the lubricant container rearwardly within the bore.

Abstract: Disclosed is a sling system comprising a sling used to carry a firearm, a bag used to conceal the firearm attached to the sling, and a release device used to releasably attach the bag to the sling. In this way, a user can discreetly transport the firearm while maintaining the ability to rapidly deploy the firearm by simply detaching the bag concealing it.