Abstract: A self-aligning flip-up mechanism for aiming devices for use with firearms. The mechanism folds the aiming device into the contour of the firearm during non-use. The mechanism is spring-loaded and flips into a vertical operational position with a simple movement of a finger or thumb. The mechanism causes the aiming device to self-align itself as it moves into an operational position. Vertical position repeatability is assured by the location of alignment surfaces in the sight which come into contact with alignment chamfers.

Abstract: An extended rigid interface frame with upper and lower rails joined to a firearm receiver and extending forward above the firearm's barrel to a head assembly replacing the firearm's normal front sight. A weaver type interface return portion is provided below the barrel from the head assembly to the receiver. A yoke braces the extended rigid frame receiver sleeve of the present invention to the forward portion of the firearm's receiver. The distal end of the extended rigid frame receiver sleeve terminates in the front sight housing which connects the upper and lower rails and provides a housing for advanced laser and sensor components, and the standard front sight bead. The front sight housing is self supported by the connection of the upper and lower rails running back to the yoke and secured to the top of the receiver. The barrel of the rifle is free floating in that it does not touch the extended rigid frame receiver sleeve in any manner.

Abstract: A buffered means for attaching a first device to a second device. The attachment means includes a camming surface. The invention provides a buffer element between the attachment device camming surface and the area to which the attachment device is affixed.

Abstract: A sleeve added to the upper receiver of a firearm for incorporating firearm ancillary equipment. The sleeve has an upper enhancement interface portion and a lower firearm interface portion. The upper enhancement interface portion has standard, universal dimensions regardless of the firearm. The lower firearm interface portion is specific to the particular firearm the sleeve is integrated to.

Abstract: The invention disclosed herein comprises a means of attaching a first device to a second device. The attachment means includes a camming surface and is spring loaded. The attachment means is particularly useful in attaching a first weaver interface to a second weaver interface. The camming surfaces and spring loading permitting adjustments to permit proper attachment to varying interface surfaces.

Abstract: A mount for mounting an optical sight on a firearm and providing azimuth and elevation adjustments. The mount includes first and second members pivotally connected for universal movement relative to one another. One of the first and second members has pivotally connected to it a reaction member, and the other has azimuth adjustment means and elevation adjustment means. The azimuth adjustment means includes a screwthreaded portion threadedly engaged in a threaded bore in the reaction member. The elevation adjustment means includes an eccentric portion rotatable in a bore in the reaction member. The sight is bolted to the mount at one location and bolted to a carriage member, slidable on the rest of the mount, at another location whereby differential thermal expansion of the sight and mount can be accommodated.