Absolute Machine Tools
Np Abs Mt Gun Drilling Machine Robot

Small-Caliber Gun Barrel Processing

April 8, 2021
Machines and production cells perform deep drilling, reaming, and rifling for as many as 20,000 small-caliber firearm barrels per month – efficiently.

ABSOLUTE MACHINE TOOLS’ portfolio of machine tools and automation systems includes machines specifically engineered for drilling, reaming, and rifling of small-caliber gun barrels. These Precihole brand machines can be combined into processing cells so a manufacturer can drill, ream, and rifle as many as 20,000 small-caliber firearm barrels per month -- efficiently.

A typical cell is comprised of three machines. First, Precihole’s four-spindle gun-drilling machine permits deep drilling of four barrels simultaneously. An open machine configuration facilitates robot access, minimizing operator involvement and supporting 24/7 operation. Depending on individual model configuration, the machine can drill IDs from 0.04 to 1.57 in. and barrel stock from 0.4 - 4.0 in. OD.

Next in the process is a two-spindle pull-reaming machine that features automation for insertion and repositioning of reamers. Reduced set-up times and rapid operating parameters (0-20 IPM pulling speeds) support high-volume barrel finishing and polishing. Different machine configurations handle reaming diameters from 0.15" to 0.59" and depths from 24" – 60."

Finally, Precihole’s button-rifling machine forms precise barrel grooves at speeds up to 80 IPM. Depending on the machine model, rifling size can range from 0.15 - 0.59 in., and depth from 24 – 60 in.

According to Courtney Ortner, Absolute Machine Tools’ director of marketing and A+ automation team: “Absolute focuses on boosting the productivity and efficiency of manufacturing operations. Our company’s offering of small-caliber barrel machining and automation equipment can enable firearm manufacturers to optimize their operations and reduce the cost of the guns they produce.” Learn more at www.absolutemachine.com

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