Super Clamp for Steiner MPS Optic

This steel replacement clamp resolves the fitment limitation of the factory Steiner MPS clamping system. The stock clamp’s reduced engagement range prevents proper seating on dovetail mounts cut to the nominal ACRO footprint tolerances. The Super Clamp expands the clamping range so the MPS seats fully and securely on any mount machined within the Aimpoint-specified ACRO interface dimensions. Machined from steel with a black oxide finish, this component provides consistent clamp force without deformation over repeated mounting cycles.

Compatibility

• Steiner MPS (all generations)
• Any dovetail optic mount cut to ACRO footprint specifications (per Aimpoint published tolerances)
• Does NOT alter optic-to-slide interface – replaces only the side clamp

Key Features

• Material: machined steel, black oxide finished
• Expanded clamping range accommodates mount-to-mount variation in ACRO dovetail width
• Direct replacement for factory MPS clamp – no adapter plates or modification required
• Torque specification: 15–20 in-lb (inch-pounds) per Steiner recommendation

Install Difficulty

Difficulty: 2/5 – Requires removal of the factory clamp screws, swap the clamp body, and re-torque to spec. Tools needed: T6 or T8 Torx driver (verify screw head), inch-pound torque wrench or driver. Allow 5–10 minutes.

FAQ

Will this clamp work on a non-ACRO footprint slide cut?

No. The Super Clamp is designed specifically to adapt the MPS to ACRO-spec dovetail mounts. It does not change the optic’s base footprint or screw pattern.

Is this clamp compatible with the factory MPS screws?

Yes. The kit uses the original MPS fastening screws. Re-use the factory screws and torque them to 15–20 in-lb.

Does this affect the optic’s zero or return-to-zero capability?

When installed correctly and torqued to spec, the clamp provides the same retention stability as the factory part. Zero shift is not introduced by the clamp itself – verify mount torque separately.

Ships same business day if ordered by 2 PM ET. Standard warranty applies – replacement if defective in material or workmanship within one year of purchase.