The Modern Sporting Rifle (MSR) manufacturing business has exploded in an extremely short period of time. According to BATF statistics, only about 200,000 MSRs were manufactured yearly in 2007 and today that number has swelled to 1.8 million units yearly. From a manufacturer perspective, it was reported that in 2000 there were only around 29 MSR manufacturers and now that number is roughly 17 times more (about 500) and significantly more if you include smaller niche manufacturers. In a sea of “me-too” manufacturers, Aero Precision has stood out and been recognized for its consistent quality by its dealers and customers year after year.
Aero Precision’s production history started in the aerospace industry with an emphasis on automated and statistically measured high precision ISO manufacturing. That high volume, high precision production manufacturing naturally aligned to the firearms industry needs and ultimately ongoing OEM manufacturing for a multitude of brands in our industry.
I had an opportunity to talk with Aero Precision’s CEO, Scott Dover, about how Aero is continuing to drive innovation in the firearms industry.
TR — How did Aero Precision get into the firearms business?
SD — Obviously from our name, most would guess we started in aerospace manufacturing with a focus heavily in OEM Tier 1 and 2 work for Boeing and general contract manufacturing for the aerospace industry. That industry requires a difficult combination of extremely tight tolerance manufacturing, setup and production knowledge for very high-volume capabilities, all paired with efficiencies to minimize cost as well — these are all very hard things for a manufacturer to manage in combination. Generally, most manufacturers concentrate on just one or two of those goals, but because our business was built to deliver the best precision, highest volume and minimized cost, we have been able to do things most manufacturers cannot.
That aerospace experience built a strong foundation and reputation for our company in the manufacturing world. What differentiates us is holding the precision through extremely high production volumes, which ultimately drives down the price. Our entry into the firearms industry was a natural process. We bid on and were awarded some contracts in the OEM firearms space and we applied a lot of our best practices in aerospace engineering to those projects, which ultimately resulted in a change of direction for our company. It did take us a few years to really get our tooling and forgings where we wanted them, however, since then we have let customers lead the product direction.
TR — How is your manufacturing different?
SD — There are a lot of differences in how we do things. It all starts with the forgings made from U.S.-sourced materials. Unlike the majority of the industry, we work closely with our valued forgings suppliers for our custom product offerings, including our own custom forgings. The forging dies are extremely precise and can maintain a +/-.005-inch die closure, which delivers an extremely high quality final forging. The higher the quality the forging, the higher the potential precision and quality of the final product. We also do advanced probing of the forgings prior to manufacturing processes to ensure we can keep the tightest tolerances possible. That all translates to the precision feel and fit we expect between the finished upper and lower receivers.
Our approach to manufacturing is to start with high quality CNC equipment. But that is just the start. We design, build, test and program custom hydraulic tooling that enhances our manufacturing capabilities and allows us to manufacture in high volume while still retaining the quality we expect from our products. Being able to produce these parts efficiently also results in a lower cost of manufacturing, and a better price and value to our customers. At the same time, it is also a more expensive approach; however, we focus on the long game where attention to tooling assures that the first and last part across the 60,000 forgings we machine a month and years of production are all still the same tolerance. A receiver from 2016 should have the same tolerance and fit as one from 2019, which enhances the customer experience as they swap parts.
We run 24/7 with some of the manufacturing being “lights-out” (unmanned/fully automated) manufacturing. To do lights-out manufacturing you have to have extremely good processes, machines, source materials and excellent tooling. We have robots that load and unload machines, which all translates directly into lower cost. Automation has been a buzzword, however we were developing a lot of machining automation very early all the way back in the 1990s. A lot of the manufacturing in the firearms industry is still very old school single-purpose machine and even some that are so old they were previously steam powered.
Prior to automation, most manufacturing was still completed on vertical single-task machines, which ultimately required a lot of part movement across many different machines. That ultimately impacted the precision based on each machine’s precision, capabilities and setup. Horizontal milling with the milling head mounted horizontally and the parts vertically lends itself to higher volumes, higher speeds, eliminates fixture-to-fixture part movement and ultimately drives higher precision.

















