http://wizbangblog.com/2013/01/17/gun-ban-work-around-3d-printing-high-capacity-magazines/

excerpt
One of the most popular targets for gun-banners in this post Sandy Hook environment is the talk of banning high capacity ammunition magazines. But a group of gun enthusiasts have devised a way of getting around such bans by using three dimensional printing devices right in their own homes to create plastic versions of the magazines.

During the weekend of January 11, a group calling itself Defense Distributed “printed” a 30-round magazine out of plastic and successfully fired at least 86 rounds through it.

Last year this same group used a 3D printing device to fashion the lower receiver of an AR-15 rifle to which they attached parts of a real rifle to form a complete and working piece. The homemade gun part actually fired several rounds before falling apart from the shock of the explosions of the bullets.

Not 87 rounds?

Dupe police: http://www.ar15.com/forums/t_1_5/1420669_So_defense_Distributed_released_the_file_for_a_3d_printable_30_round_AR_magazine__update_in_OP_.html

Meet Steve Israel, The Congressman Who Wants To Ban 3D-Printed Guns (Q&A)


New York Representative Steve Israel at a press conference on Long Island Thursday, with a picture of an AR-15 with 3D-printed components.

excerpt

Few would have predicted, six months ago, that 3D printing would have stumbled into the center of one of the most radioactive topics in American politics.

Since last summer, the Texas group Defense Distributed has been working to make the idea of home 3D printing of gun components and possibly even entire firearms into a reality. They’ve succeeded, at least, for one man: New York representative Steve Israel, who sees the possibility as real enough that it needs to be explicitly banned in law.

After Defense Distributed’s YouTube tests of partially 3D printed semiautomatic weapons, Israel promised last month to specifically ban 3D printed gun components in his proposed renewal of the Undetectable Firearms Act, a law intended to ban the possession of any weapon that can’t be spotted by a metal detector or X-ray machine. And when Defense Distributed demonstrated a 3D printed high-capacity magazine–the exact ammunition feeding devices that would be banned for sale under a new federal gun control bill proposed by Congresswoman Diane Feinstein–Israel responded again, adding a specific ban on those 3D-printed ammo attachments to his proposed bill.


The high capacity magazine--illegal for sale under a proposed law--that Defense Distributed 3D-printed and tested.


One of several 3D-printed high-capacity magazines Defense Distributed has tested.

More evidence why a mag ban would affect only law abiding folks and not criminals

Everyone knows this is all bullshit.  It'll stop not a single fucking thing.  Give me a neutered Glock magazine, and my first task will be to modify it to take the standard 15.

And if I get caught, "no officer, I got this back in 2007, I think the guy before me had it from the 94 ban and hollowed it out".  Or better yet, just "I didn't get that after the ban, prove otherwise."

These dumbass big-government liberals think they can make the society they want happen by passing another dumbass law.  If they knew their ass from a hole in the ground, they wouldn't be trying to make these laws, and we wouldn't be having this debate.  

Even better: we'll make it illegal to get around the law by banning 3d printed stuff.  It'll be illegal to break the law now!

A GI mag is just 2 pieces of stamped steel, spot welded.  A stamped floorplate, spring and follower.  I wonder if some thrifty, backwoods machinist type hasn't already made a couple mags ....just because he could.  Just saying.  Maybe we need to ban Mills, Lathes and Arbor Presses.