OEM G20/G21 Base MOD 1


OEM G20/G21 MOD 1 RMC and Standoff Base

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SKU: 2021RMCBM1 Category:


The 5K RMC Base – OEM G20/G21 is a rail mounted compensator used with standard and flush length, non-threaded Glock 20 and Glock 21 barrels and slides for the OEM G20 and OEM G21 frames. The Mod1 base attaches to your frame utilizing the picatinny rail, sliding on with a tight grip. The Timing Rail properly aligns the base with your slide/barrel, secured using the 2x 4-40 3A screws. As the base is now timed, it leaves a small gap between the Compensator and slide, allowing the RMC to be used as a stand-off device. Much like the Mod 0, the lowered compensator shelf height allows for slides to be removed for cleaning without detaching the base assembly.

  • American made
  • Manufactured from billet 6061-T6511 aluminum
  • Hard anodized to MIL-A-8625 TYP III Class 2 Black
  • Compatible with 10mm and .45cal
  • X.X oz. combined weight (including 2x 10-24 3A compensator screws)
  • May require lighter recoil spring
  • Firearm not included
  • Compensator not included, available separately