Red dot mounts for Glock 21

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Red dot mount Glock models [G17 G19 G26 & other] | Shield RMSc footprint - Ubitzu

Red dot mounts for Glock 21

(9 products)

For a classic G21 without MOS, nine mounts replace the rear sight.

Each mount uses the rear dovetail. No slide milling is needed. Match the mount to your optic base.

  • Type A (RMSc, DPP, Docter), Toni System.
  • Type B (RMR & RTS), Toni System.
  • Shield RMSc, Zendl.
  • Type C (RMR, RTS, Docter), Outer Impact.
  • Type S (RMSc, DPP, K-series), Outer Impact.
  • Type D (RMR & Docter), Holosun.
  • Trijicon RMR, EGW.
  • Holosun K-series, Angry Bear.
  • Shield RMSc, Angry Bear.

More Glock 21 parts: Accessories for Glock 21.

Frequently asked questions

Which for a Holosun 507C?

An RMR footprint mount.

Back to irons later?

Yes.