Unity Tactical FAST Offset Optic Base

The Unity Tactical FAST Offset Optic Base is the offset solution for shooters already running a Unity FAST scope mount. It bolts onto any FAST red-dot or LPVO mount, not a bare Picatinny rail, and positions a micro red dot at a 36-degree offset from the centerline. That shallower cant than the typical 45-degree mount keeps the dot closer to the line of the bore and shortens the head movement required to find it. With an adapter plate installed, the dot sits at a 2.05-inch mechanical centerline above the rail.

CNC-machined from 7075-T6 aluminum and Type III hardcoat anodized in black or FDE, the base uses Unity's FAST adapter plate system rather than a fixed footprint. A FAST Optic Adapter Plate is required for the base to function, and it mounts in three positions, forward cantilever, centered, or rearward cantilever, so you can index the dot exactly where your cant naturally lands. Plates are sold separately and cover the Trijicon RMR/SRO and Aimpoint ACRO footprints among others. The base is compatible with all FAST mounts for red dots and magnified optics; it does not fit FAST FTC magnifier mounts.

The tradeoff is the FAST ecosystem requirement: it only makes sense if you own or plan to buy a Unity FAST mount, and you budget another $35 or so for the adapter plate. For shooters already on the FAST system, the offset base reuses the same plates as Unity's other FAST mounts and ties the dot into the structure already holding the primary optic.