NineX19 X1 Slide – RMR Cut for Glock 19 Gen 3


Precision machined lightweight slide upgrade for Gen 3 Glock 19 pattern pistols

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The NineX19 X1 Slide strikes a perfect balance between form and function. The precision machined windows give the X1 its “Gucci” aesthetic while the aggressive rear serrations and RMR-pattern optics cut provide functional performance and capability. Machined from 17-4 stainless steel billet and coated with either black nitride or FDE Cerakote, the X1 slide will stand up to whatever abuse you can dish out, be it long days in a holster or rigorous use at the range.


  • Compatible with Gen 3 Glock 19 models and most G19-pattern builder platforms (eg: Nomad Defense, Polymer 80, Lone Wolf, etc) (NOTE: May also fit Gen 4 & 5 frames with minor modifications.)
  • RMR-pattern optic mounting cut (includes matching cover plate)’
  • Available in Black Nitride, FDE Cerakote, and Sig Dark Gray Cerakote finishes
  • Manufactured from 17-4 stainless steel for optimal performance, reliability, and service life
  • Reduced reciprocating weight (vs OEM slide) lowers felt recoil and improves accuracy on follow-up shots
  • Generous windows dissipate barrel heat for prolonged service life and enhanced performance
  • CNC machined in the USA


  • Lightning Fast Processing & Shipping
    Most orders are delivered to your door anywhere in the U.S. in 2 to 3 days, starting at $5.
  • Pew With Purpose
    The 9X function-first design philosophy prioritizes improved performance and capability over factory components. Our team is comprised of competition shooters, law enforcement officers, and active duty military personnel whose real-world expertise drives our product development.
  • Premium Service Is Our Mission
    Our responsive team of firearm enthusiasts / experts are on hand to answer any questions and provide suggestions to ensure you have a smooth running pistol.
  • No Gimmicks, Just Gun Parts
    Each product shows our true stock level – no backorders, no vague lead times. Product out of stock? Just sign up for the re-stock notifier and you’ll get an email the minute it’s back on the shelf.


This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

Weight12 oz
Dimensions8 × 2 × 2 in

Black Nitride, FDE Cerakote, Sig Dark Gray Cerakote

3 reviews for NineX19 X1 Slide – RMR Cut for Glock 19 Gen 3

  1. Wes213 (verified owner)

    Order arrived super fast and the quality on this slide is second to none.
    Couldn’t find one thing to complain about even if I try, if you need a slide and have a chance to grab one pull the trigger and you won’t regret it.

  2. Miguel Sanchez (verified owner)

    Delivery time was fast and the quality is much better than I expected. I ordered the FDE color and it’s VERY close to the FDE as the p80 frame, especially when compared to a G19X.

    For price, design, and Included optic cut this has to be by far one of the best slides to go with.

  3. Trevor Moran

    Completed my FDE build with this slide and it matches the steel city trigger and magwell nicely. This slide racks smoother than my original glock slide and shoots well, I’d say recoil has been reduced.

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