Rockey Precision Glock 20 CES Slide with RMR Cut


(19 customer reviews)

44 in stock

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Categories: , , , SKU: RBG20CESRMR


Rockey Precision Glock 20 Slide with RMR Cut 10mm Auto

Our slides are machined from 416R stainless steel billet stock and come ready to accept Glock OEM internals, barrels, and guide rods right out of the box. Rockey Precision slides offer increased accuracy and reliability over OEM slides by providing tighter tolerances making them a perfect fit for any 80 percent project or custom build.

Features of the Rockey Precision Glock 20 Slide

  • Front and Rear Cocking Serrations
  • RMR Site Cut (RMR Cover Plate Included) – Cut to accept RMR pattern red dot optics (Trijicon RMR/SRO, Holosun 507C, Swampfox Kingslayer etc)
  • Lowered ejection port
  • Iron Site Front and Rear Cuts
  • Critical interior dimensions are held to tighter than OEM specs
  • Cut from US Manufactured Stainless Steel Billet Stock
  • Two step finish aluminum oxide and glass bead blasted
  • Black Nitride Finish
  • Compatible with all Glock 20 Gen 1-3 OEM and high quality aftermarket parts and accessories.

Finish Options

Black Nitride is a surface finish that changes the steel on the surface layer of the slide, adding hardness and lubricity. This is a very durable finish that is also corrosion resistant. 
Our slides are made from US made steel, by US workers, in the USA. As such, we know our slides will stand up to any challenge.
Stripped Slide Only.
*DISCLAIMER “GLOCK” is a federally registered trademark of Glock, Inc. and is one of many trademarks owned by Glock, Inc. or Glock Ges.m.b.H. Rockey Brass is not affiliated with nor endorsed by Glock, Inc. or Glock Ges.m.b.H. This product is to be installed by a competent gunsmith. No liability is expressed or implied for damage or injury which may result from installation or use of this product.

19 reviews for Rockey Precision Glock 20 CES Slide with RMR Cut

  1. robert (verified owner)

    great product for a great price worth the money all day…took a small amount of polishing inside the plunger recess shot flawlessly and rmr fit is perfect will be buying more again better than brownells slide and aim surplus by far it looks like oem slide

  2. matthew shuck

    G20 rmr slide . Very snug tolerance with the barrel and slide that they sell together. Much more accurate than a stock Glock. I have ran about 200 rounds through it so far and no jamming whatsoever. On p80 frame,Will buy another.

  3. James

    Couldn’t be happier with the finish on this slide. Great price and fast shipping makes it even better

  4. Christopher Bell

    One of the best deals for a high quality top end and had the G20 version in stock! I personally wanted a window cut for weight reduction but function over form is never bad. the included RMR cover plate is a nice touch! only complaint i have is that the slide channels have a slight tool cutting marks in them and i can feel it drag on my polished/deburred rails. Same with the reset hump that contacts the connector. After dressing with some 400grit and red compound, racks much smoother now. For the money, its well worth the small bit of finishing.

  5. Kyle Bramley

    After Sending multiple emails trying to return my order with no response i am left to write a review. Customer service is terrible i even tried calling, my problem with the slide is after having a certified Glock armorer install the OEM slide parts the slide wouldn’t slide into the frame. It appeared that the plunger wasn’t able to be fitted to seat properly. Thank you


    Fit and finish is excellent. With all assemblies some break in is needed.

  7. J. Evans

    If you are looking for quality at a great price. Look no further! This slide exceeded my expectations! Very happy and will refer anyone in the market!

  8. Bill

    SS chanel liner installed is a pos. There is debris where the firing pin enters and I cannot reach to remove. Plunger has to be shoved in with heavy pressure to install. Quality control is terrible. Would not recommend to anyone. Will be contacting about a replacement or full refund. So much wasted time!!!!!

  9. Phil

    I missed out on this slide last time they had some in stock and I wasn’t going to miss out again. And I’m glad I got one. They are very good quality and function great. I would highly recommend getting one if your looking to do a build or as a replacement/ upgrade to an RMR cut slide.

  10. C

    After ordering a slide from elsewhere and getting ghosted by the manufacturer, I sprung for the extra 30 bucks and purchased a Rockey slide that has all the features I wanted to begin with. (Get them while you can, they sell out fast) The slide shipped out same day as purchase and showed up in 4 days. The fit and finish is perfect and Rocky Brass’s customer service has been outstanding. Hard to find during these crazy times. Quality products, affordable prices and legitimate customer service. Thanks guys.

  11. Troy Lancaster

    The Rocky Precision Glock 20 slide looks like it is manufactured by Glock, from the milling right down to the finish. I am very impressed with the quality. Rocky Brass was a breeze to order from as a bonus.

  12. David Shepard

    Got this for a build. Installed the striker channel and assembled, fit is good. Finish is very nice. RMR mounts nice and tight with no slop. Might have to go to local hardware store for some 6-32 flush fit screws that are 3/8s a inch to mount the RMR if you only had the longer screws that came with RMR. Or cut those down. Rear sights will need to not extend past their slot very much or at all. I filed a Zev combats sights lead edge back 1mm or so, to fit it in there. I had a Agency Drop in trigger that wouldn’t break the lone wolf upper kit… I fixed that by bending the sear connector down carefully till it would consistently break. will compare to a stock glock trigger I am getting to see if it was just a out of spec trigger, will edit if needed. Would buy again.

  13. Gun lover

    Looks great, quality is ??. In this day and age its like a gold bar!!!!

  14. Chrus

    I had been having problems finding a slide for my large frame build, have had ither excellent experiences with Rockey Brass so I put my name on the waiting list. I got the email that the part was in stock and jumped on, it was at my door in days and the quality is excellent. Another great job.

  15. Kolson

    This thing is HEAVY. The rear dovetail for the back sight is pretty loose, loooser than any other slide I’ve ever used. Waited months for this slide to come in and I’m a little let down.


    I wanted to wait until I was able to put a few rounds through it. Perfect. Ran it through a stock G20 barrel on a gen 3 frame with Rockey’s upper parts kit. Flawless. Ran 50+ handloads topping 1300 fps and not a single hiccup.

  17. John Maddox

    Great Product! Excellent fit and finish, best easiest option for mounting a red dot to a Glock 20 or completing a 10mm p80 build. Chamfered edges and bull nose are a huge improvement over the gen 4 slide.

  18. Kevin

    I had been having issues finding a 10mm slide to finish a G20 build when I found this. The price was great, the finish was fantastic and the slide had everything I wanted on it without it having to be custom made. When they say it has tight tolerances it is true. There was about a 30 round break in period where the slide would get stuck back. After breaking it in, I have not had any issues with the slide. Would 100% recommend these slides.

  19. Kirke Pilney

    Best fitting , best looking slide I’ve used yet. The steel guide rod was a big plus. Very impressed with these parts.

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