Stefan Kovačević

Inventer of AGS Annealer and Founder and Owner of AGS Custom Company.

He was born on July 30, 1979, in the city of Čačak, Serbia, Europe

Beginning of the Journey

It all started as a hobby back in 2014, while I was still working as a bank manager, and I was quite into airguns and tuning and regulating them. Since I needed a lot of custom-made parts for those airgun tunes and regulators, I purchased a 7×12″ bench lathe and heavily modified it so it could perform better. This was located in my kitchen, in a flat that I used to live in.

After experiencing certain health issues, I quit my banking job and decided to offer my custom airgun parts online, initially through eBay. At about the same time, I started hunting and got in touch with firearms. In 2016, a long-range match was held on a nearby shooting range (500 m). I went there and competed with my hunting rifle at that time (8×57 Yugo M48). And finished second, out of 80 contestants. That was my way into the long-range shooting. Shortly after that, I got my first real F-Class rifle, chambered in 6.5×47 Lapua. That caliber is not quite common in my country and brass is scarce, so soon enough, I was in a spot where I had to find a way to prolong their usage. Out of some scrap material I had around in my shop, I made the initial version of what would later be known as AGS Annealer.

Back Then...

I shared photos and videos of it on several boards and Facebook groups, and many people started asking me if I was going to offer it for sale, how they could purchase one, etc. It was something rather different than the airgun stuff I already produced and offered, but it sounded like something I could give a try. I have altered the design slightly and came up with a product that is affordable, lightweight, compact, easy to maintain and use – the AGS Annealer.

I set out to design a compact, high-quality product that anyone can use with ease. Alongside the product itself, I make it a priority to provide customers with fast and reliable support whenever they have questions.

I wanted to create a compact and high-quality product that would be simple to use. In addition to the quality of his products, I provide my customers with support in the form of quick responses to any questions related to his products. Today, I run a successful company with thousands of satisfied customers worldwide and I’m happy to have combined my passion for shooting and hunting with my business. I continue to compete in various shooting sports disciplines, where I have won many accolades.

I consider my greatest achievement to be my family — my wife and child.

We are excited to share that, as of August 2025, our U.S. company AGS Custom LLC has officialy been established in Sheridan, Wyoming.

Brass annealer tryout

First model that was made

Gallery