摘要:
A gas operating system for a firearm comprises a gas block defining a cylinder, a discharge gas vent coupled to the cylinder near a proximal end of the cylinder and a discharge gas inlet configured for pneumatic coupling with the barrel of a firearm near the proximal end of the cylinder. A piston in the cylinder is movable from a rest position distal of the discharge gas vent and the discharge gas inlet against the action of a return spring by discharge gas from a barrel of a firearm pneumatically coupled to the discharge gas inlet. A regulator is pneumatically coupled to the discharge gas vent to selectively control the flow of discharge gas from the discharge gas vent to modulate a volume of discharge gas advancing the piston. A diffuser may be provided pneumatically coupled to the regulator for diffusing any audible or visual report.
摘要:
The firearm fore grip for use with a firearm having a barrel extending along a bore axis and an attachment rail operatively associated with the barrel and extending along the bore axis. The firearm fore grip comprises a base configured to engage an attachment rail, the base having a leading and a trailing end. A first hand contact surface is configured to extend substantially parallel to the attachment rail from the leading end of the base. A second hand contact surface extends from the first hand contact surface intermediate a leading and trailing ends of the base at an obtuse angle relative to the first hand contact surface.
摘要:
An asset management mapping system including a microphone recording the audio of the asset inspector and a condition signal generator generating an audio condition signal based on asset inspector input from a keypad including condition selectors recorded into a global positioning system audio and video recorder that associates the audio and video with a gps location to create a pavement condition database. The database is interpreted to generate a condition output map of the areas inspected.
摘要:
An asset management mapping system including a microphone recording the audio of the asset inspector and a condition signal generator generating an condition signal based on asset inspector input from a keypad including condition selectors recorded into a global positioning system recorder that associates the audio, condition signal, and video with a gps location to create a pavement condition database. The database is interpreted to generate a condition output map of the areas inspected and provide associated video of each location on the map.
摘要:
An asset management mapping system including a microphone recording the audio of the asset inspector and a condition signal generator generating an audio condition signal based on asset inspector input from a keypad including condition selectors recorded into a global positioning system audio and video recorder that associates the audio and video with a gps location to create a pavement condition database. The database is interpreted to generate a condition output map of the areas inspected.