It uses four equally spaced fins which are 4.8 square feet (0.45 m2) and canted in such a way as to provide two revolutions per second at Terrier burnout.

[4] Standard hardware includes a nose cone and capacitive discharge ignition system.

[4] Terrier-Oriole is used to test ballistic missile defense systems, under the name Aegis Readiness Assessment Vehicle-B (ARAV-B).

[6] This T-T-O stack uses two Terrier Mk.70 (TX-664) plus the final Oriole GEM-22 as a medium range ballistic missile (MRBM) target.

[7] In mid-November 2022, the T4-E stack was used for two live-fire events when Japanese Navy ships JS Maya and JS Haguro used RIM-161 SM-3 Block IIA missiles to engage T4-E targets in conjunction with the US Navy at the Pacific Missile Range Facility, Kauai Island, Hawaii.