Future Tech: 3D Metal Printing of Gun Parts and 1911 Pistol

Could your next metal scope rings, trigger guard, or muzzle brake be crafted with a 3D printing process? It’s possible. In fact, a wide variety of metal parts (even a complete handgun) can be printed using the latest 3D Direct Metal Laser Sintering (DMLS) process. The way this works is as follows: powdered metal is heated by a laser, causing the metal particles to fuse and solidify. This is progressively repeated, in vertically-stacked layers, until the entire metal part is complete. It’s like building a metal layer cake with the shape/size of each thin layer defined by a precise laser beam. The laser is guided by computer-controlled servos following a CAD “blueprint”.

This video demonstrates how metal parts are 3D printed using the DMLS process. This technology is offered by Solid Concepts, a leading rapid prototyping and manufacturing services company.

The Solid Concepts 1911 — World’s First 3D-Printed Metal Firearm

Solid Concepts has manufactured the world’s first 3D-printed metal gun using a laser sintering process and powdered metals. The gun, a .45 acp 1911 clone, has already handled 50 rounds of successful live-fire testing. A 1911 design was chosen because the “blueprint” is public domain. The gun is composed of thirty-three, 17-4 Stainless Steel and Inconel 625 components, crafted through the DMLS process. Even the carbon fiber-filled hand grips are 3D printed, using a Selective Laser Sintered (SLS) process.

Except for the springs, all the parts of this 1911 handgun were printed using the metal laser sintering process. Yes even the highly-polished slide, the barrel, the frame, and the hammer were printed. There are no forgings, castings, or conventionally-machined parts. With the exception of springs, all 30+ components in this prototype pistol were printed using Direct Metal Laser Sintering (DMLS) technology. Watch the video for a glimpse into the future of gun-making:

World’s First 3D-Printed Metal Gun Test Firing

Solid Concepts believes that its fully-functional, 3D-printed 1911 handgun proves the viability of 3D printing for gun parts, even highly-stressed components. Kent Firestone, V.P. of Additive Manufacturing at Solid Concepts, states: “We’re proving this is possible, the technology is at a place now where we can manufacture a gun with 3D metal printing. And we’re doing this legally. In fact, as far as we know, we’re the only 3D printing service provider with a Federal Firearms License (FFL). Now, if a qualifying customer needs a unique gun part in five days, we can deliver.”

Will we see complete 3D-printed metal guns on the market soon? That’s unlikely. It’s still more economical to produce complete guns the old-fashioned way. However, we may see 3D printing used for rapid prototyping. In addition, 3D metal printing has advantages for hard-to-machine parts with complex geometries. Solid Concepts reports that its 3D printed metal has fewer porosity issues than an investment cast part and better complexities than a machined part. It will be interesting to see what unfolds in the years ahead.