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Zaffiri Precision RTS Glock 19 Gen 3 ZPS.3 Pistol Slide RMR Cut
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Most Helpful Negative Review Having issues feeding
Bought this so I could throw a RMR on my Glock 19, but when I took It out I kept having feeding issues I would get one maybe 2 rounds in and it would jam again, that being said I’m not gonna return it I like the quality of the product so I’m just going to need to sand a bit and fix it
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Zaffiri Slide

by Steve, Verified Owner from NH, United States Written on December 8, 2024
My first time using this manufacture and have to say they make a great slide. Deffinitly worth the money. Good looking slide.
Would recommend: Yes
Was it helpful to you? Yes | No

Works well in Glock 19 Gen3 w/ Holosun 407CX2 Red Dot

by Chuck, Verified Owner from CA, United States Written on December 27, 2022
This side is a drop in upgrade for my Glock 19 Gen3. The RMR cut was also a drop in for the Holosun 407Cx2 red dot. I recommend a rear sight vice for quick and easy installation of Americon (green front & yellow rear) suppressor night sights. This colored sight pattern worked well with the red dot for quick acquisition. A green dot could cause slower acquisition with the green front sight. This slide does not come with slide parts so I used the Trijicon upper slide kit. I’ve also tried a 20 lbs. Tungsten guide rod with this slide but ran into cycling issues with any 114-150 grain rounds and went back to an 18 lbs. guide rod with no problems.

The stock Glock Gen 3 barrel worked fine with this slide but I’ve already purchased a new barrel and will review the results later.
Pros:
  • great drop in part for G19 gen3
  • RMR Cut for Holosun 407CX2 Red Dot
Cons:
  • cycling issues with 20 lbs. Tungsten guide rod
Would recommend: Yes
Was it helpful to you? Yes | No

Great slide for red dots

by Cfelt, from VA, United States Written on November 15, 2022
I bought this slide and have been running it with 124 grain ammo. It works like a champ. Parts kit fit easily into it. I use it for sport and limited competition use. I would highly recommend this product for anyone who likes slides with red dots.
Pros:
  • Price
  • Quality
Cons:
  • None
Best Used for:
  • shooting
Would recommend: Yes
Was it helpful to you? Yes | No

Great slide and great company

by Cfelt, from VA, United States Written on November 15, 2022
I bought this slide and have been running it with 124 grain ammo. It works like a champ. Parts kit fit easily into it. I use it for sport and limited competition use. I would highly recommend this product for anyone who likes slides with red dots.
Pros:
  • Price
  • Quality
Cons:
  • None
Best Used for:
  • shooting
Would recommend: Yes
Was it helpful to you? Yes | No

Great slide and great company

by Cfelt, from VA, United States Written on November 15, 2022
I bought this slide and have been running it with 124 grain ammo. It works like a champ. Parts kit fit easily into it. I use it for sport and limited competition use. I would highly recommend this product for anyone who likes slides with red dots.
Pros:
  • Price
  • Quality
Cons:
  • None
Best Used for:
  • shooting
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.