Esstac
Esstac Pistol KYWI inserts
Choose the right pistol magazine insert for your setup. Two versions are available—Glock and 2011—with each insert designed around the shape and taper of different double-stack pistol magazines to provide secure and reliable retention.
Glock Insert
The Glock Insert is specifically designed for Glock magazines. Glock magazines maintain a relatively straight magazine body before tapering close to the feed lips, allowing the insert's retention point to securely hold the magazine in place.
Compatible with:
- Glock magazines
2011 Insert – Universal Option
The 2011 Insert features a higher retention/pinch point to accommodate magazines that begin tapering earlier. This makes it significantly more versatile and compatible with a wide range of double-stack pistol magazines.
The 2011 Insert has been successfully tested with double-stack magazines ranging from 9mm to .45 ACP, including Glock magazines.
Compatible with:
- 2011 magazines
- SIG magazines
- Smith & Wesson M&P 2.0 magazines
- Walther PDP magazines
- CZ magazines
- Beretta magazines
- Glock magazines
- Other similarly shaped double-stack pistol magazines
Which Insert Should I Choose?
If you exclusively use Glock magazines, choose the Glock Insert.
If you use multiple pistol platforms or aren't sure which option is right for your magazines, we recommend the 2011 Insert. Its higher retention point accommodates a broader range of magazine profiles, including Glock.
Not sure? Choose the 2011 Insert for maximum compatibility.
Below is the Glock insert on the left, and 2011 insert on the right.

Glock works with both the Glock insert, and the 2011 insert. ✅

2011 does NOT work with the Glock insert, works with the 2011 insert. ✅

Disclaimer:
Will these Pistol KYWI inserts work in other manufacturers equipment? The honest truth we have no idea. We have been told by customers that our Pistol KYWI inserts work in other manufacturers equipment but we can't tell you which ones they do and don't work in. We do not buy other gear company's equipment and test our inserts in them so we can't tell you what they are going to work or not work in. If you decide to buy our Pistol KYWI insert to use in a different manufacturers equipment that is your choice.
Frequently Asked Questions
How long does delivery take?
Orders placed before 21:00 on business days are usually dispatched the same day from our warehouse in the Netherlands. Standard EU delivery typically takes 2–5 business days, depending on the destination. Express shipping options are available at checkout.
Do you ship outside the EU?
Yes, we ship worldwide. International delivery times and shipping costs are shown at checkout. Please note that orders outside the EU may be subject to local import duties, taxes, or customs fees.
Are your products genuine?
Yes, all products sold by Gear Town are 100% authentic. We source our products directly from the manufactures and authorised distributors. We do not sell counterfeit goods.
What is your return policy?
Unused and unworn items can be returned in their original packaging within 14 days of delivery. Once we receive and inspect the return, we will process your refund or exchange. Return shipping costs are the buyer's responsibility unless the item is defective or incorrectly sent.
How do I choose the right size?
Sizing can vary by brand and product type. We recommend checking the size guide on the product page before ordering. If you are between sizes, planning to wear layers underneath, or unsure about the fit, please contact us at sales@geartown.eu before placing your order.