Technical Tuesday: Identifying Types of Handgun Malfunctions – Nose Up Jam


Technical Tuesday: This week, we are talking about some common handgun malfunctions that we hear from our customers. One that we see often, especially with P80 builds, is a “nose up” malfunction, in which the round doesn’t feed properly and ends up jammed in a nose up position.

It can be tricky to troubleshoot the P80, so be sure to watch our video above. We’ll look at how this malfunction happens, what can cause it, and a few ideas for fixing the issue.

If you are in the market for a polymer 80 kit, try out our P80 Frame Completion Kit with Shadow Systems Elite Trigger.

Hopefully, this can help you with identifying malfunctions on your own, but of course, give us a call at (469) 458- 6808 with any questions. We are always happy to help!

Technical Tuesday: Replacing Your Slide

Slide Disassembly for Glock & Gun Slide Replacement

This week, Technical Tuesday is building on our post discussing slide disassembly and replacement for Glock pistols.

In the video above, we walk you through one of the most common modifications for Glock handguns; the disassembly and replacement of a slide. We show you how to do it with the right tools and also some tips and tricks in case you don’t have the right tools on hand.

Watch and learn how to strip your current slide if you’re planning to reuse the existing internal parts (please note, you will need a new channel liner as that is a one-time-use part).

We show you how to use the reused parts, and then we will also show you how to use the parts from a slide completion kit in your new slide.

If you want to read a step by step with pictures as you disassemble your Glock slide, read our post about Glock modifications.

And, as always, if you run into any issues with the slide disassembly and replacement, give us a call at (469) 458-6808.

Shop the custom slides featured in this video!


Technical Tuesday: Glock Sight Upgrades


What night sights should I get for my Glock? Should I use a black rear sight? What sights make you shoot fast? What gun sights should I use with an RMR? Should I replace my stock Glock sights?

These are all the questions we are answering in today’s Technical Tuesday video!


It’s Technical Tuesday! This week, Trevor is talking all things sights–what we think works best and why.

A pistol sight system can feel like a very personal choice–not only is there the question of optic or non-optic but then there’s what kind and what height and what colors. We’re going to talk about what we picked, why we picked it, and why we think this is a great solution for most people.

Here at Shadow, we use a serrated black rear sight combined with one of three front sights: green outline tritium, red fiber optic, or black. Our recommended Glock sight upgrade and the most common configuration for our customers is serrated black rear sight combined with the green outline tritium front sight.

Some folks may feel that night sight systems require some kind of illumination on the rear sight. From a practical perspective, we prefer the plain black rear sight for two reasons.

1. You’re paying for it. Since illumination on the rear sight isn’t right for everyone, our production guns don’t come with it, that way if you choose to swap it for our recommended black rear sights in the future, you haven’t already paid a couple hundred bucks for illuminated rear sights that you won’t be using.

2. Adding illumination (dots or dashes) to the gun’s rear sight adds more chaos to the sight picture, meaning more stuff you need to focus on. If you look at the competition world, you will see that almost everyone running iron sights is using a plain black rear sight. This is because the rear sight isn’t something you want to be focusing on; all you focus should be on the front sight. When the gun is cycling fast, it is best to really just have one thing you need to focus on. If you’ve got dots and dashes on the rear sight that you need to try to line up, it does add to the chaos of everything you’re trying to track. The reality is, at night, if you’re scared and dealing with a potentially deadly threat, lining up dots and dashes and shifting your focus back to the rear sight is not the best use of your time. We believe at that point it is as simple as pressing that big green glowing front sight toward the target and pull the trigger and you’re probably going to get your hits.

The reason we like the green outline tritium front sight for a pistol is that during the daylight the green outline provides a nice bright focal point that has the feel of a fiber optic front and then at night the tritium lamp gives the benefit of the glowing green front to give you an index point at night.


Featured in this video is the SS9F featuring the LFT Hybrid Grip Slide. Check that out here.

Explore Shadow Systems Fighting Sights

The Right Approach to Pistol Modifications, A Three-Part Series: Part 3

This week, we’ve been talking about choosing modifications to your pistol that ensure reliability and performance. On Wednesday, we talked about choosing modifications that improve handling qualities first, like grip work and serrations. Check out that post here! Yesterday, we discussed the importance of choosing quality connectors and springs. Check out that post here!  Today,

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The Right Approach to Pistol Modifications, A Three-Part Series: Part 2

This week, we’re sharing a few guidelines on how to choose the modifications for design, quality, and performance. Yesterday, we talked about choosing modifications that improve handling qualities first, like grip work and serrations. Check out that post here! Today, we will be talking about selecting quality internals in Part 2: Connectors and Springs  

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The Right Approach to Pistol Modifications, A Three-Part Series: Part 1

Too often, we see pistol modifications of questionable design, quality, and performance.  As the number of aftermarket parts companies increased, so did the number of parts that make us cringe when we see them on customer pistols. This week, we’d like to share some general guidelines as you embark upon modifications to the gun.  There

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Technical Tuesday: Slide Design and Slide Serrations


Do slide serrations really matter? What is the difference between all the slide designs and serrations offered on Shadow Systems slides?


In this Technical Tuesday video, Trevor walks us through the different slide designs and the performance implications of each type of slide serration. 

At Shadow Systems, the machine work we do is “function first,” meaning we don’t add things or do machine work just because it looks cool (it does), but we do additional machine work to our slides because it improves the handling characteristic of the gun. If you compare the newly released MR918 to a stock Glock, you’ll notice huge differences in the amount of machining on the slide. The only thing you have to hold on to on a stock Glock is in the rear, and that can be a bit limiting Bec cause you’re restricted to grabbing in the rear of the slide if you’re manipulating the gun. It also means, if you want to do press checks or any manipulations on the front of the gun, the Glock makes it quite a bit more difficult to do, especially with Glock’s new NDLC finish—it’s really pretty slippery. Compare that to a Shadow slide that has aggressive gripping surfaces anywhere you’re going to want to grab the gun. It’s important to remember, you aren’t just going to be manipulating the gun to load it; there are all kinds of reasons you’ll be manipulating the handgun, from press checks to malfunction clearance drills to slingshotting the slide forward at reload, where you’re really relying upon that gripping surface to improve your handling of the pistol.


But why are slide serrations shaped the way they are shaped? In this video, we review the different Shadow Systems slides and what the design decisions were in creating each slide. In our premium slides—the MR918 Slide, LFT Hybrid Grip Surface Slide, and Optics Ready Slide—there is more machining to create a directional serration. Directional serrations means that the back side of the serration is beveled. This means that when you’re grabbing the slide to rack it, you have a really aggressive sharp surface to grip from, but the backside of the serration, the direction you move when coming out of a holster, is beveled so that you have less friction when you’re moving that way, to prevent snagging. Both the MR918 and LFT Hybrid Grip slides have top serrations as well, for people who like to manipulate the slide from the front, the top serrations can provide a place to really hold onto when manipulating at high speeds. We’ve done something additional to the new MR918 slides by placing the serrations in a pocket on the slide, which makes the slide feel noticeably thinner in that location and helps to give you even more control. This is especially helpful for people who have smaller hands to get a good grip on the gun.

In our more basic slides—the Enhanced Carry Slide and the C.O.P.S. Slide—you’ll see flat cut serrations (non-directional) in both the front and the rear. These flat cut serrations are very common in slides on the market, including the stock Glock slide, however, our flat cut serrations are in both the front and the rear and are also placed at an angle. The angle is not just for aesthetics. When you’re handing the gun, you’re never going to be pulling straight back, so when you’re handling a gun like the stock Glock, with straight serrations int eh rear, you’ll find that your fingers can slip off a bit as you manipulate the slide. Our angled serrations help with preventing your hands from slipping by providing force for your hand to pull against in the natural direction that your hand moves. This is a way to ensure you can fully manipulate the slide.


Explore Shadow Systems slides.