One of the products of the Ultra Light Engineering from Tom Kaye was the aluminum vertical feed bodies.
2.
The Ion, by contrast, has a threaded vertical feed port that accepts all standard Impulse-threaded feednecks.
3.
Between these vertical feed cables were the antennas proper, eight half-wave dipoles strung between the vertical cables and spaced ?of a wavelength apart.
4.
This drop-in upgrade eliminates the need for the powerfeed design on older body styles and was ushered in with the Ultra Light Engineered vertical feed body.
5.
Finally, the SP-8's breech section is drilled for a right-hand feed tube ( so that top-mounted accessories such as scopes will not be blocked by the feed tube or hopper ), while the Ion is set up for traditional vertical feed.