Abstract: A holster shell is constructed with a horizontally oriented closed bottom wall, which along with opposing outward and inward facing sidewalls form a U-shaped cross section. A holster cavity is exposed along front and rear sides of the holster shell, through respective front and rear gaps that are defined between the sidewalls and the bottom wall. In some embodiments, the front gap of the holster cavity provides clearance for varying dimension, electro-optical or other sighting systems. In some embodiments, the rear gap of the holster cavity provides clearance for varying dimension laser sights and/or flashlight modules. Handgun retention features, such as trigger guard and/or ejection port conforming profiles, are defined within the holster shell. When a corresponding handgun is inserted within the holster cavity, the holster shell provides retention bias against the handgun.

Abstract: A holster shell is constructed with a horizontally oriented closed bottom wall, which along with opposing outward and inward facing sidewalls form a U-shaped cross section. A holster cavity is exposed along front and rear sides of the holster shell, through respective front and rear gaps that are defined between the sidewalls and the bottom wall. In some embodiments, the front gap of the holster cavity provides clearance for varying dimension, electro-optical or other sighting systems. In some embodiments, the rear gap of the holster cavity provides clearance for varying dimension laser sights and/or flashlight modules. Handgun retention features, such as trigger guard and/or ejection port conforming profiles, are defined within the holster shell. When a corresponding handgun is inserted within the holster cavity, the holster shell provides retention bias against the handgun.

Abstract: Users of a social networking system initiate conversations between other users and additional users who may not be registered to use the social networking system. Each additional user is identified by an item of contact information, and conversation messages are sent to an additional user using the contact information. The conversations are associated with the item of contact information and saved in the social networking system. A user of the social networking system may subsequently claim the item of contact information. The claiming user is given access to the associated conversations if the social networking system can verify that the item of contact information belongs to the claiming user.