Weaponsman: 3D semi-auto 9mm and updates
3D-Printed 9MM Semiauto (video rich); 3D Guns Update
As we have expected to happen for some time, and as the initial Cody Wilson “Liberator” first demonstrated, 3D-printed firearms made of common addititive-manufacturing plastics like ABS or PLA inevitably had to diverge from common steel firearms practice to take advantage of those plastics’ strength — and overcome their weaknesses.
That means that, while early prints were nothing but, for example, a plastic version of an AR lower dimensionally identical to its aluminum forbear, but destined for a short life (especially in PLA), more and more designs are innovating in different directions.
This series of videos shows the Shuty, a 9mm pistol based on kitbashing the designs of British homemade gun pioneer P.A. Luty and the AR-15 together. It uses several metal parts, including the barrel (which comes from a Glock 17), the fire-control group (AR), and the bolt (home-made). On the other hand, the magazine, upper and lower receivers, and bolt carrier, are all printed from a polymer generally thought unsuitable for firearms parts. Turns out, you can design around materials deficiencies (as the Japanese did when they used chrome bores for strength, to offset the suboptimal alloys they had for rifle barrels, decades before other nations adopted them for durability, and when their aeronautical engineers designed assemblies built-up of 7075-equivalent alloy sheet where every other skyfaring nation would use a 7075 forging).
More Here including video of test fire
Source: http://gunwatch.blogspot.com/2015/08/weaponsman-3d-semi-auto-9mm-and-updates.html
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