Small firearms companies can produce rifles that look like they belong to much larger factories. These nine examples stand out for combining tiny workforces with unusually large calibers, heavy actions, long barrels or extreme-range roles. Employee figures come from public business listings and can change over time, so the numbers here should be read as reported workforce estimates rather than permanent headcounts. The rifle specifications are based on manufacturer pages and established industry references.
1. Serbu Firearms BFG-50
Serbu Firearms is a rare example of a tiny shop producing a genuine heavy rifle. Its BFG-50 is a single-shot bolt-action rifle chambered for .50 BMG, a cartridge measuring 12.7×99 mm. The company says it currently has only 5 employees and machines most parts in-house. The BFG-50 was designed in 1999, when founder Mark Serbu wanted a well-engineered .50 that cost far less than many competing rifles. The carbine version used a 21-inch barrel and weighed about 17 pounds, showing how much the design could be tailored. It is still a very large rifle.
2. Anzio Ironworks 20mm Rifle
Anzio Ironworks operates on a very small scale, yet its 20mm anti-materiel rifle is one of the largest shoulder-fired designs on this list. Public manufacturing directories place the company at 1 to 9 employees. The rifle uses the 20×102 mm cartridge and a bolt action with a 3-round detachable magazine. Published specifications put the basic rifle at roughly 59 pounds, while heavily equipped versions can reach about 130 pounds. A 49-inch barrel and roughly 80-inch overall length make its physical size almost as remarkable as its caliber. Its weight is the headline.
3. CheyTac M200 Intervention
CheyTac is another unusually small maker associated with an exceptionally large precision rifle. A current manufacturing directory lists the company at 1 to 9 employees. The M200 Intervention is chambered in .408 CheyTac and .375 CheyTac, with a 29.5-inch barrel and a 7-round magazine. Its published weight is 31 pounds without an optic, and the rifle measures about 56 inches overall. CheyTac lists a 2,500-meter-plus capability, making the M200 a specialized extreme-long-range system rather than an ordinary field rifle. Transport is easier with the barrel removed.
4. Gruning Precision 50 BMG
Gruning Precision is a small custom manufacturer listed at 1 to 9 employees, yet its work includes rifles chambered for .50 BMG. That combination makes it a good example of how a very small machine shop can build unusually large firearms without operating like a mass-market factory. Public industry listings describe Gruning as a custom maker serving military and law-enforcement markets. Its .50 BMG work places it in the heavy-rifle category, where thick receivers, large barrels and specialized machining are necessary to handle the cartridge’s size and pressure.
5. Safety Harbor SHF/R50
Safety Harbor Firearms has historically operated with only a handful of employees, with one business directory estimating 2 to 4 workers. Its SHF/R50 is a .50-caliber rifle, while the company is also known for the SHTF 50 upper system. The SHF/R50 shows how a very small manufacturer can focus on a narrow niche instead of producing a huge catalog. The company was established in 2003, and its Florida operation has remained associated with large-caliber sporting and tactical firearms. Its compact workforce is striking beside the size of the rifles it builds.
6. Vigilance Rifles M18
Vigilance Rifles is listed as a 2- to 10-employee company and has been designing and producing rifle systems since 1990. Its current lineup includes several heavy models, including the M18 50 BMG Classic, M18 50 BMG Takedown, and M14 50 BMG semi-auto. The company also offers the VR1 in .408 CheyTac. Its M18 line is notable for emphasizing accuracy guarantees across its rifle systems. Few manufacturers with such a small workforce maintain a catalog that reaches from conventional precision rifles to .50 BMG platforms. The lineup is unusually broad.
7. Spider Firearms Ferret50
Spider Firearms, the company behind the Ferret50, is an especially striking small-shop story. A current business profile estimates about 1 employee, while the company’s own site identifies the owner as Dave and lists the Ferret50 as a complete rifle and modular system. The rifle has been offered in .50 BMG, .408 CheyTac, and .338 Lapua, with configurations ranging from 18- to 36-inch barrels. Published specifications put many complete versions around 18 to 24 pounds. That is substantial weight for a rifle built by such a lean operation. The shop remains remarkably lean.
8. Zel Custom Tactilite
Zel Custom Manufacturing was a small Florida operation with an employee count reported at 8, and it became known for the Tactilite line. The Tactilite T2 was a magazine-fed, bolt-action .50 BMG upper designed around an AR-style lower. The receiver was CNC-machined from 4140 steel, heat-treated, and fitted with an integral scope rail. The system accepted a 5-round Accuracy International magazine and could use different barrel options. Zel later offered versions in .338 Lapua and .416 Barrett, extending the concept beyond the original .50 BMG platform.
9. EDM Arms Windrunner M96
EDM Arms was a very small manufacturer whose Windrunner rifles became influential in the heavy precision-rifle world. A business listing estimates only 1 to 4 employees, although the company is now closed. The M96 Windrunner was a takedown bolt-action rifle offered in .50 BMG and other large cartridges, with a 5-round detachable magazine. One public equipment record lists a .50 BMG M96 at 34 pounds. The design also supported caliber conversions, helping explain why the Windrunner became a foundation for later extreme-range rifle systems. Its modularity became its signature.
