From Passion to Profession: Trentech Engineering
By Simon Frederiksen
For plenty of people in the shooting world, turning a lifelong hobby into a career is something that stays as workshop talk or range daydreaming. For Lee Trengove, it became reality when he launched Trentech Engineering in 2012. What started as a strong interest in long-range shooting steadily grew into a specialised gunsmithing business based in Brisbane.
Lee’s path into gunsmithing wasn’t a result of a single moment. It developed over years of fabrication work, curiosity and a competitive streak that pushed him to build and refine his own rifles. By the mid 2000s, long-range shooting had shifted from casual interest to a serious pursuit. Building his own rifles and competing with them gave him first-hand experience into what separates good equipment from ‘lights out’ gear.
That journey peaked at the Australian Shooting Games, where Lee won gold in every category in his class across the two-day event – an achievement he still believes hasn’t been repeated. With proven performance behind both his rifles and his skills, the idea of turning passion into a profession started to make real sense.
Now starting a gunsmithing business isn’t as simple as opening a workshop and getting to work. Years went into licences, approvals, machinery and navigating a regulatory landscape that can challenge even experienced tradespeople. When Trentech Engineering finally opened its doors, it represented far more than a new business. It was the result of nearly two decades of trade experience, training and time spent behind a rifle.
These days, competition shooting has taken a back seat while Lee focuses on family life and a busy workshop. But the competitive mindset hasn’t gone anywhere. It’s built into every rifle, component and job that leaves the shop.
Background and technical foundation
One of the biggest strengths behind Lee’s work is the depth of his trade background. Unlike many who come into gunsmithing purely from a shooting perspective, his journey started in heavy industry. In 1995 he began his first apprenticeship as a boilermaker and welder in Coffs Harbour, building a solid foundation in practical engineering and hands on trade skills.
He spent the following years working in metal fabrication across several industries, developing a strong understanding of materials, manufacturing processes and precision work. The turning point came in 2004 when he moved into a machine shop. Surrounded by lathes and mills, Lee quickly discovered a real passion for machining. His employer recognised the potential and offered him a second apprenticeship in fitting and turning, which he completed in just three years.
That dual-trade background became a huge advantage later in gunsmithing. Welding and fabrication built the practical mindset and problem-solving ability. Fitting and turning introduced the precision machining and tight tolerances needed for high performance rifle builds. Further training in CNC programming and CAD-CAM eventually led to work as a CNC programmer and machinist for a specialist component manufacturer in Brisbane.
Throughout this time, Lee continued building and refining his own rifles. As online forums and technical resources became more accessible, he read everything he could find on rifle building and precision shooting. Formal gunsmithing courses in Australia were almost non-existent at the time, so mentorship and industry connections filled the gap. One of the most influential was Neville Madden, who was always willing to share knowledge and provide insight into the craft.
By the time Trentech Engineering launched, Lee had built a solid mix of skills with multiple trades, CNC programming experience, competitive shooting success and years of self-driven learning. It was the perfect foundation for a career in precision rifle building.
Services, products and specialisation
Trentech Engineering is a small, highly specialised workshop focused on competition and high-end hunting bolt action rifles. As a sole trader, Lee handles everything himself – from machining and assembly through to customer consultation and product development. This one-man approach means every job gets serious attention to detail and customers deal directly with the person building their rifle.
The workshop is set up with two precision centre lathes, a manual milling machine and a four-axis CNC machining centre, each with a clear role. The lathes handle barrel work and general turning, while the CNC mill takes care of engraving, cutting extractor slots and producing Trentech’s in-house components.
One of the special products to come out of the workshop is the Trentech precision scope rings. Developed in 2015 in collaboration with champion shooter Stuart Elliot, the rings were designed to fill a gap in the market for high-quality precision mounting solutions. They were quickly adopted by the benchrest and competition shooting community and are sold today through retailers like Kaizen Tactical and The Q-Store.
Tight tolerances are a core part of the Trentech philosophy. Barrel work is typically dialled in to around ±0.0001 inches of runout where possible, and headspace is routinely achieved within ±0.0005 inches. Those numbers might seem tiny, but in precision shooting they can be the difference between a good rifle and a great one.
Outside of builds and products, Lee also gives back to the shooting community by supporting local competitions. As a small business owner, sponsorship must be balanced with running the workshop and family life, but he remains committed to grassroots events. Lee recognises that local matches are what help keep the sport and the industry moving forward.
Modern gunsmithing
Modern gunsmithing sits right where traditional craftsmanship meets modern manufacturing technology. The tools may have evolved, but the fundamentals are still built on precision, patience and problem-solving.
One of the biggest barriers to entering the trade today is regulation. Licensing and approvals can take significant time and money, making it a tough path for anyone looking to get started. On the flip side, training opportunities have improved, with online courses and overseas training now available for those willing to travel. Even so, Lee believes a proper fitting and turning trade background is still essential for anyone serious about becoming a gunsmith.
Technology has also changed what’s possible in a workshop. CNC machining brings repeatable precision and makes producing complex parts far more efficient, but gunsmithing remains a highly specialised field. While modern, five-axis machining centres are incredibly impressive, they’re often hard to justify in a small, specialised workshop environment.
Looking ahead, Lee sees the future of shooting in Australia with cautious realism. Increasing regulation is likely to continue shaping the industry over the coming decades. Despite this, demand for precision rifles and quality components remains strong within both the competition and hunting communities.
As a one-man operation, Trentech represents a modern take on traditional craftsmanship. Technology supports the work, but it doesn’t replace skill. Every project is still driven by a combination of engineering discipline and real-world shooting experience that mass production simply can’t replicate.
Gun talk
Asking Lee what makes an accurate rifle, he boils it down to four key elements: barrels, bedding, sights and ammunition. When those pieces come together, a rifle is most of the way to performing at its best. The rest comes down to the nut behind the bolt.
When asked the classic question, if you could have just one rifle and one calibre for the rest of your life, Lee’s answer was carefully considered. His pick would be a custom action in a lightweight composite stock with a 24-inch varmint barrel chambered in 6mm GT. It’s a cartridge that can be loaded from a light 55 grain projectile through to 110 grains, making it capable of both hunting and competition roles.
After more than 15 years in the trade, there isn’t much that surprises him. He’s built rifles for competitors across multiple disciplines, keen hunters and even government agencies. Despite the variety, the most rewarding moments are still the simple ones: seeing a customer walk in with a case full of parts and leave with a rifle capable of consistent, accurate performance in the field or at the range.
While his competition shooting may currently sit behind business and family life, the passion that started Trentech Engineering still drives the workshop every day. Lee’s contribution to the Queensland and broader Australian shooting community deserves recognition and support. When your rifle needs attention or a dream build is on the cards, Trentech is a name that should be high on the list.
0415 370 273 (call between 3pm to 6pm)
PO Box 540 Carina QLD 4152
