Super Clamp for Steiner MPS Optic

Description

The factory clamp on your Steiner MPS is a weak point, especially when you’re running drills in the Arizona sun. Heat, dust, and the constant vibration from a suppressor can cause it to lose grip. The Apex Super Clamp is a direct replacement that solves this problem for good.

This clamp is machined from solid steel and finished with a black oxide treatment. That means it resists corrosion from sweat and humidity, and it holds up to the fine silica dust that gets into everything out here. It’s not aluminum. It doesn’t flex under recoil. It’s built to stay tight.

The key benefit is expanded compatibility. The factory clamp only fits mounts with very tight tolerances. The Super Clamp is engineered to widen the clamping range of your MPS, allowing it to work on any dovetail mount cut to the standard ACRO mounting specs set by Aimpoint. If your slide or mounting plate is cut for an ACRO, this clamp makes your MPS fit securely.

What you get:

• Steel construction — replaces the factory clamp with a part that won’t warp or strip.
• Expanded mounting range — works on all ACRO-spec dovetail mounts, not just tight-tolerance units.
• Black oxide finish — reduces glare and resists wear from holster draw and cleaning solvents.
• Easy swap — uses the existing MPS fastening screw; no special tools or modifications needed.

Fitment and specs:

• Compatible with: Steiner MPS (all generations).
• Mount compatibility: Any optic mount cut to Aimpoint ACRO standard tolerances.
• Material: Steel, black oxide finish.
• Torque spec: 15–20 in-lb on the fastening screw (per Steiner recommendation).
• Price: $20.

If you shoot suppressed, you know the extra gas and carbon buildup can loosen optics over time. The Super Clamp gives you a more consistent clamping force across the entire mounting surface, reducing the chance of your zero walking off between stages. In high-heat conditions, steel holds its shape better than polymer or soft aluminum, so you won’t see a shift when the sun bakes your rifle or pistol.

For the price of a box of match ammo, you fix the one part of the MPS that limits where you can mount it. No filing, no shims, no sending your optic off for modification. Just swap the clamp and run it on