A golf club grip includes an elongated body having an irregular pentagon-shaped five-sided cross-section with a contoured periphery and a consistent cross section along a longitudinal length of the body. The invention allows a cable installer to connect an end of a microcoaxial cable having a stranded center conductor to a male coaxial cable connector which requires a solid center conductor such as a pin for greatest reliability. After firing the last round, a bolt-hold lock is urged upwardly in the path of the returning bolt and catches a face of the bolt, thereby locking the bolt open until the magazine is replaced with a replacement magazine, at which time a bolt-hold release paddle pulls the bolt-hold lock downwardly, releasing the bolt to chamber a first round from the replacement magazine. In one embodiment, the base assembly comprises at least one exposed electrical connector disposed in an insert made of a dielectric material, such as a plastic resin. An aperture is positioned on the wiring module functional side so as to accept the key only when the functional module is properly oriented with respect to the wiring module. The opposite end of the connector is adapted to receive a free end of a length of flexible conduit.