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Some of the most important files in 3D2A are reference models, yet reliable drawings can be hard to come by. User ThoughtsAndPrayers provides us with a complete MAC-11/9 Upper Receiver Assembly CAD which contains all the reference components for a modern MAC-11/9 project. ThoughtsAndPrayers says he checked his work against another MAC-11/9 model which was gatekept, but never released, by The Gatalog.

When we reviewed this odd accusation, we found that previous drawings, simplified for ease of manufacture, were indeed hoarded by The Gatalog since last year. In the interest of analysis, and because the FTC just made these kinds of anti-competitive agreements illegal, we now preserve The Gatalog's MAC file nondisclosure and profit-sharing agreement at DEFCAD.

There's a lot to learn from this (top-tier) showcase in legal writing. I'm sure by "profit" they mean moral profit. But seriously, I recommend The Gatalog register it with the Copyright Office, like they did with their SF5 STEP files over Christmas Eve.

Because nothing beats federal gun registration like literally registering your files with the feds!

3D2A is about a lot of things these days, but profile value will always take the grand prize. The new DEFCAD leaderboard is the first objective measurement in our space of your and your files' popularity (read: value) over time.

At last, a common reference point for rank! We shall brood over it as God brooded over the waste and the void! O, Bliss! O, Godlike feeling!

Because many of the creators in our space suffer from advanced profile neuroses, this innovation is probably the most deadly since the FGC-9, but we must prefer dangerous freedom over peaceful slavery.

Bookmark it: https://defcad.com/leaderboard

On Monday the 22nd, the Supreme Court granted certiorari in VanDerStok, the so-called “frame and receiver” case where Defense Distributed is an intervenor plaintiff. The case’s docket page can be found here.

To be argued in October, the case's “Questions Presented” are:

1. Whether "a weapon parts kit that is designed to or may readily be completed, assembled, restored, or otherwise converted to expel a projectile by the action of an explosive," 27 C.F.R. 478.11, is a "firearm" regulated by the Act.

2. Whether "a partially complete, disassembled, or nonfunctional frame or receiver" that is "designed to or may readily be completed, assembled, restored, or otherwise converted to function as a frame or receiver," 27 C.F.R. 478.12(c), is a "frame or receiver" regulated by the Act.

Please join us in D.C. this fall. We're putting on an event for members of LEGIO and the Supreme Court bar. More info TBA.

Born of the minds of Gordon Ingram and Mitchell WerBell III, the Military Armaments Corporation’s Model 10 submachine gun is a landmark development in the history firearms. Developed in the late 60's (a time where rifles were seen as the end all be all for defense and offense), the MAC-10 and its many variants re-popularized the submachine gun, which would later find use in special forces operations and military trials. Ingram and WerBell hoped the MAC might have a role in Vietnam.

Interestingly, the MP5 was designed around the same time as the MAC-10, and we can see the different ideas they represent. The MP5 is an elegant, expensive police weapon, and the MAC-10 is a cheaper lead spitter that gained notoriety (even directly named in the 1994 AWB) as a weapon for drug runners and gang members. Take a look at any 80's action movie, and the criminal element will usually have an AK or a suppressed MAC.

The MAC-10 was designed around an open bolt blowback mechanism, often coupled with a two-stage suppressor designed by WerBell himself. This bulky design enables the MAC-10 to boast its sheer fire rate, which can approach 1300RPM or higher, depending on whether it's chambered in .45ACP or 9x19mm. The suppressor is of special note, with the Military Armaments Corporation making a point to advertise its two-stage suppressor as a part of the deal.

The MAC-10 is the predecessor of two variant lines: the MAC-11A1 and the MAC-11/9. The two are similar. The MAC-11A1 is chambered in .380ACP with a slightly longer and narrower receiver than the MAC-10, and the MAC-11/9 is chambered in 9x19mm with an even longer receiver. Both use the same suppressor, a modified version of the MAC-10 suppressor, which uses wipes instead of baffles.