Another 3D Firearm Approach: Plastic Casting

Here’s the situation: say, you want to test a new firearm or part design, and because you’re iterating rapidly, 3D printing would be ideal. But the mechanical properties of common 3DP polymers, polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) are insufficient, and it’s either more challenging or more expensive to print in materials with better mechanical properties, like …

Read more

Lee Williams: Down With Poly AK Mags!

Lee Williams has had it with polymer AK mags, and this is his reason: The mag blew up while sitting unattended in Lee’s safe, and the resulting chaos was waiting for him when he opened it up. I’m done with polymer AK magsPosted on April 30, 2015 by Lee Williams I had a surprise last night …

Read more

HSI’s Odd Restrictions on Agents’ Personal Weapons

There are numerous investigative agencies and armed police in our Federal government — probably more agencies than anyone can account for. The Amtrak SWAT team? Yep, it’s a thing. Criminal Investigators for the Library of Congress? They’re out there, and they’re armed, sworn 1811s like any other Special Agent. Each agency has to decide how …

Read more

Colt AR15 and M16 Serial Numbers, 1960-1972

This memo’s been around as a scanned, non-OCR’d .pdf for a long time. We’ve OCR’d the PDF, and double-checked the numbers against the original data. The PDF is here:M16 Serial Number List OCR[.pdf]. The complete text is below this editorial comment. We would add the following remarks: The first few Colt serial numbers (001-100) were …

Read more

Those Who Forget the Past, AR-15 Edition

A couple of days ago we followed a link from The Gun Feed to the Michigan-based gun blog 248 Shooters.com. (We’re guessing 248 is an MI area code? The way the Workshop Eating Plane® will have “603” in its N Number?). Anyway, the article was a short and to the point gear review of an extended or enhanced …

Read more

Burst Selector: An Idea Whose Time has Come and Gone

A couple of years ago, the Army gave the lousy three-round-burst selector switch that was used on the M16A2 and successors, and the original M4, two in the chest and one in the head. There are still firearms with the bad trigger mechanism kicking around the services, but this decision was the beginning of the …

Read more

What does it take to be an SF sniper?

People ask about sniping all the time. Thing is, the basic standard for SF shooting is pretty high, and it’s kept that way by constant training — really, by constant shooting. It’s no longer 1980 where you have fifty rounds per man per year (and the teams illegally buy their own ammo to keep from …

Read more

The American Cal. .60 Anti-Tank Rifle, T1 & T1E1

Germany, Poland, the UK, and the USSR all developed anti-tank rifles and used them with mixed results (the Germans, in World War I, then all of them, in the early years of World War II) Other nations including Czechoslovakia, Switzerland, Finland and Japan built anti-tank rifles, essentially huge rifles that fired a kinetic penetrator meant to kill …

Read more