AoA Duty Slide w/ RMR Cut For Glock® 20

SKU: G20-02

From: $135.99

In Stock

AoA Duty Slide w/ RMR Cut For Glock® 20

Everything You Need, Nothing You Don’t!

Our G20 (10mm) Compatible Duty Slides w/ RMR Cut are precision CNC machined from Premium American 17-4 Stainless steel and come ready to accept Glock® OEM internals, barrels, and guide rods right out of the box. Our duty-grade slides offer better performance over an OEM slide through tighter tolerances and will serve you well in your next build or upgrading of a stock slide. Our duty-grade slides are upgraded in all the right areas to improve performance without the additional costs associated with windows, ports, or other visually enhancing features.

This slide features an RMR Cut and is ready for your favorite RMR Trijicon or Holosun optic, such as the popular 507C micro-optic. Alternatively, use an RMR Cover Plate (Sold Separately) to run your slide without an optic.

Our G20 Compatible Duty Grade slides are unbranded, though manufactured in the same U.S. facility as many products twice the price!

*Note: The RMRcc has different bolt spacing and will not mount directly to the slide. The Holosun K series is not compatible.


  • Match grade, tight tolerances that are more specific than factory-grade
  • Angled serrations for improved grip and slide manipulation in stressful environments
  • Front and rear side serrations for maximum grip and slide manipulation
  • Offered with unique cerakote patterns for a true custom appearance and corrosive resistance.
  • Compatible with G20 Gen 1-3 OEM and aftermarket parts & accessories.

Our “Arm or Ally” branded products are manufactured in the same facilities and to the same standards as many well-known, high-end AR brands.

What is the Arm or Ally Brand?

Arm or Ally branded products are manufactured in the same facilities and to the same standards as many popular, high-end brands. Our promise to you is a high-quality product at a more affordable price—100% American-made products backed by the same defect-free warranty as every other product we offer.

...unless you like paying for their marketing and fancy packaging!

Product Information


Leading U.S. Manufacturer






17-4 Stainless Steel


QPQ Nitride


Black, Bottomland, Burnt Bronze, Desert Canopy, FDE, Gold Dazzle, Multicam, Silver Damascus, Sniper Grey, Black Multicam, Flat Dark Earth

Optics Cut

Leupold – Delta Point Pro, Trijicon – RMR


G20, Gen 1-3

Made in USA




This product is warranted to have a proper fit and function when used as a direct replacement on a factory GLOCK® frame, using either a factory GLOCK® or an AOA Slide Completion Parts Kit. We do not guarantee this product's fit or function if using any slide parts kit other than those mentioned above.

This product is compatible with Polymer 80 frames when finished adequately by the end user. We are not responsible for fitment issues resulting from improperly finished P80 frames.

Any request for a return claiming a defective slide will first be tested for fit and function using a factory GLOCK® frame, factory Polymer 80 serialized frame, and AOA Slide Completion Parts Kit. Slides with a proper fit and function will be shipped back to the customer at their expense.

Arm or Ally

Arm or Ally is a stocking dealer for all Aero Precision, Faxon Firearms, Ballistic Advantage, HOLOSUN, Toolcraft, Elftmann Tactical, Timney, TriggerTech, HIPERFIRE and was named the #1 Overall E-Commerce Dealer for Aero Precision Products in 2020!

See our growing inventory of AR Parts, Parts for Glock and Reloading Components.