Tapco

Tapco, reportedly named after its designer, is a detachable metal and polymer stock used for Covenant. Styled after Misriah Armory's MA5 ICWS Series, its purpose is to make the weapon more comfortable for human operators. It features a four-selector switch for safe, semi-auto, full-auto, and charge, and a holographic smart-link sight that is compatible with most heads-up display systems. If the pistol ran out of charge, then troopers would be expected to source replacements in the field.

Although offered to the UNSC, issues with aligning the pistol with the sights and an inability to reload meant that it was never adopted. Instead, the Tapco found far more success with criminal and private security firms.