Will Grip Tape Fit Inside My Kydex Holster?

Short answer: In almost every case, yes. A stick-on grip adds about half a millimeter per side, and a Kydex holster retains the pistol on the trigger guard, not on the grip. Most of the grip never enters the holster. The exceptions are holsters molded tightly around the frame just behind the trigger guard, leather or pocket holsters that wrap the whole grip, and any holster whose maker says no. This guide explains where a holster touches the gun, what the numbers add up to, and how to check your own rig in two minutes.

Disclosure: this guide is written by Five Point Grips, which sells a silicone stick-on grip. We have not measured holster clearance beyond the thickness of our own material, and we say so below. Every competitor and holster-maker statement here was read from their own site on October 19, 2026 and is quoted as written.

What a Kydex holster actually touches

A molded Kydex holster is formed around a specific pistol, and the fit that matters is in three places: the trigger guard, the front of the frame ahead of the trigger guard (the dust cover and rail area), and the slide. The trigger guard is the retention point. The holster snaps over it, and the retention screws, when there are any, usually sit right beside it. As one holster-fitting guide puts it, the screws "are located nearest to where the trigger guard rests inside the holster" (everydaycarryconcealed.com, read October 2026).

PHLster, which makes some of the most widely used appendix holsters, says the same thing about its own products: "the holster is molded to the exact shape of the trigger guard," and "when we make a kydex holster, we use very specific clearances and contact points inside the holster" (PHLster, "Holster Compatibility and Aftermarket Pistol Frames," October 2024, read October 2026).

A stick-on grip lives behind the trigger guard, where your hand goes. On a Glock 43X or 48 that means the sides of the frame under your palm and fingers, the front strap, and the back of the frame. None of that is where a Kydex holster holds the gun. When the pistol is holstered, the grip stands above the mouth of the holster, in the open, where you reach for it.

The arithmetic

Here are the only numbers we can stand behind.

• Terragrip™ silicone is 0.5 mm thick. Two side panels add 1.0 mm to the width of the grip, measured across the panels.
• Glock lists the 43X at 28 mm overall width at its widest point (us.glock.com technical data, read October 2026). An extra 1.0 mm is a change of about 3.5 percent, and it is on the part of the gun the holster does not hold.
• TALON Grips says its grips are "about .4 mm" in its FAQ and "less than .5 mm thick" in the same document (talongungrips.com/faq, read October 19, 2026). So any adhesive grip on the market puts you in the same half-millimeter band. Nothing here is thick enough to change a trigger guard.

What we have not done is measure the gap between a 43X frame and the inside of any particular holster. Holster makers mold to their own tolerances and we do not have those figures, so we will not pretend to. The thickness is the number; the rest is where the thickness sits.

Where a grip can touch a holster

There are three places a stick-on grip can meet a holster. Knowing them tells you which rigs to check and which to stop worrying about.

1. The frame just behind the trigger guard

Some holsters are cut high enough that the front edge of the shell wraps a few millimeters of frame behind the trigger guard, right where the front strap and the lower edge of a side panel begin. If your grip extends down into that band, that is where you may feel the holster go slightly firmer. Before you install, hold the holster against the bare frame and note where its front edge sits; then keep the lower edge of the grip above that line. If you are cutting your own panels from a sheet, keep the lower edge a few millimeters above the trigger guard and you avoid the problem entirely.

2. The back of the frame under a tall sweat guard

A full sweat guard rides up the slide, not the grip. But some designs extend a wing or a wall behind the rear of the frame. If yours does, the backstrap area is where it will touch. On a 43X or 48 the kit covers the surfaces your hand contacts and has no separate backstrap piece, so the contact, if any, is minimal.

3. Holsters that wrap the whole grip

Leather holsters molded wet around the gun, pocket holsters, and some hybrid designs with a leather or neoprene backer are shaped to the grip itself rather than to the trigger guard. These are the holsters where half a millimeter can matter, and where a textured grip will also leave wear marks on the inside of the leather. If you carry in one of these, test before you commit, and expect the leather to need a few days to take the new shape.

Grip tape, silicone and stippling: the holster view

Thickness is only part of what a holster sees. The other part is what the surface does inside it.

The point people miss is the last row. Stippling adds no thickness, but it changes the frame surface permanently, and a holster maker can still decline to guarantee fit. A stick-on grip is the only option in the table you can take off if the holster disagrees with it. If you are weighing the two, our grip tape vs stippling guide covers cost, feel and resale.

How to check your own holster in two minutes

1. Install the grip and give it the full 24 hours to bond. Do not test it at ten minutes; the adhesive is not set and a tight holster can lift an edge. The steps are in the installation guide.
2. Unload the pistol, check it again, and clear the room of ammunition.
3. Holster the pistol and listen for the retention click on the trigger guard. It should sound and feel the same as before.
4. Draw ten times. Slightly firmer on the first few is normal while any Kydex edge beds in against the new surface. Firmer every time, or a draw that drags, means the shell is contacting the grip.
5. Look at the grip edges nearest the holster mouth. A shiny line or a lifted corner shows you where the contact is.
6. If it is too tight and your holster has retention screws, back them off a quarter turn at a time. If it has none, stop and ask the maker. PHLster's advice is plain: "Do not heat up your holster in an attempt to remold it," because heating "softens it up and makes it lose its shape" where retention lives. We agree.

If after all that the holster still fights the grip, peel it off. Terragrip™ comes off by hand without residue, and our 60-day money-back guarantee applies installed or not, so a holster that says no costs you nothing.

When not to put a grip on a holstered gun

Skip the grip, or ask first, in these cases.

• Your holster maker says no. PHLster puts it this way: "The final authority on whether an aftermarket frame or grip fits a certain holster lies with the holster manufacturer." That is the right rule for every brand, including ours.
• Your holster locks on the frame rather than the trigger guard. Some duty and retention designs do. Check the maker's fit notes.
• You carry in a wet-molded leather holster you are not willing to re-break-in.
• You want an abrasive texture on a gun that lives in a holster all day. TALON itself recommends its Granulate texture "for open holster carry only." A grit surface inside a closed holster wears the holster, the finish and your cover garment.

Holster makers: help us make this page better

We would rather publish measured clearances than general advice. If you make Kydex holsters for the Glock 43X and 48, Glock 43, Springfield Hellcat, or any of the other guns on our fit list, we will send a set so you can check it in your own shells, and we will add your result to this page with a link to your fit note. Use the contact page and say which models you mold for.

Common questions

Does grip tape change holster retention?

Not on a trigger-guard-retention Kydex holster, because the grip does not reach the trigger guard. It can change the feel of a holster that wraps the frame behind the trigger guard or the whole grip. Test with an unloaded pistol after the full bond.

How thick is a stick-on grip?

Terragrip™ silicone is 0.5 mm per side. TALON states "about .4 mm" in its FAQ. Both are thinner than a credit card.

Will Terragrip™ fit a Glock 43X holster from Tenicor, PHLster, Tulster or Vedder?

We have not tested those holsters and we will not guess. The grip adds 0.5 mm per side on the part of the frame those holsters do not retain on, which is why we expect it to fit, and why we say check it yourself in two minutes. If a maker sends us a fit note, it goes on this page.

Can I trim the grip to clear the holster?

Yes. Terragrip™ cuts cleanly with scissors or a hobby knife, so you can take a millimeter or two off the lower edge of a panel if your holster's shell rides high. Trim before you peel the backing.

Does a grip tape texture damage the holster?

An abrasive texture can. TALON's FAQ says Granulate particles "can end up in your holster." Silicone has no grit, so there is nothing to shed.

What about the magazine floorplate?

The 43X and 48 kit has no magazine piece, so the floorplate and the magazine well are unchanged and the holster never sees a difference.

Does the grip affect a weapon light or optic holster?

No. A light-bearing holster is molded to the light and dust cover, and an optic cut is in the slide. The grip is behind both.

Try it on your own holster

The Glock 43X and 48 Terragrip™ kit is $29.99, in stock, and ships within 24 hours. Install it, holster it, draw it. If your rig says no, peel it off and send it back within 60 days for a full refund, installed or not. The Glock 43 kit is in stock on the same terms, and the rest of the range is in the Glock grips collection. If you are comparing stick-on options first, start with The Best Glock 43X Grips Compared.

Five Point Grips is not affiliated with or endorsed by Glock, TALON Grips, PHLster or any firearm or holster manufacturer. TALON and PHLster statements were read from their own sites on October 19, 2026 and can change. Terragrip™ is a silicone elastomer; it is not at its best when wet and we make no wet-hands claim for it.

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