Abstract: A pistol with buffer has a frame defining an upper horizontal slide plane, having a forward muzzle end, and defining a receptacle, a slide rail module removably received in a rear portion of the frame receptacle and having a front face, a cross pin engaging the slide rail module to the frame, a buffer received in the frame receptacle and having a rear face abutting the front face of the slide rail module, and a retention portion of the slide rail module configured to contact the buffer to prevent extraction of the buffer when the slide rail module is received in the frame receptacle. The retention portion may be positioned above a selected portion of the buffer to prevent removal of the buffer from the frame when the slide rail module is engaged to the frame by the cross pin. The slide rail module may define a vertical front surface.

Abstract: An apparatus includes a light modulator configured to modulate light to display frames of images based on display image data, and a controller coupled to the light modulator. The controller is configured to obtain a sequence of image data to be displayed by the light modulator; produce the display image data based on the sequence of image data; transmit the display image data to the light modulator; determine, based on the sequence of image data, to enter one or more sleep modes that reduce power usage by the controller, the light modulator, or an interface between the controller and the light modulator compared to a normal operation mode; and enter one or more extended sleep modes that have lower power usage than the one or more sleep modes if an extended sleep mode signal is detected in the sequence of image data.

Abstract: A pistol with buffer has a frame defining an upper horizontal slide plane, having a forward muzzle end, and defining a receptacle, a slide rail module removably received in a rear portion of the frame receptacle and having a front face, a cross pin engaging the slide rail module to the frame, a buffer received in the frame receptacle and having a rear face abutting the front face of the slide rail module, and a retention portion of the slide rail module configured to contact the buffer to prevent extraction of the buffer when the slide rail module is received in the frame receptacle. The retention portion may be positioned above a selected portion of the buffer to prevent removal of the buffer from the frame when the slide rail module is engaged to the frame by the cross pin. The slide rail module may define a vertical front surface.

Abstract: A pistol with buffer has a frame defining an upper horizontal slide plane, having a forward muzzle end, and defining a receptacle, a slide rail module removably received in a rear portion of the frame receptacle and having a front face, a cross pin engaging the slide rail module to the frame, a buffer received in the frame receptacle and having a rear face abutting the front face of the slide rail module, and a retention portion of the slide rail module configured to contact the buffer to prevent extraction of the buffer when the slide rail module is received in the frame receptacle. The retention portion may be positioned above a selected portion of the buffer to prevent removal of the buffer from the frame when the slide rail module is engaged to the frame by the cross pin. The slide rail module may define a vertical front surface.