ATF seizes airsoft AR's.

I've been watching this since I saw it at Uncles' place - seems the ATF thinks that some airsoft AR's are a bit too close to the real thing:

Investigation by the Bureau of Alcohol, Tobacco, Firearms and Explosive showed that the guns had been tooled to shoot plastic balls. However, parts could be switched out quickly to allow them to fire live ammunition.

But a commenter at Sebastian's did a little research:

So essentially these Airsoft replicas cannot even operate an AR15 trigger pack without heavy modification with a precise tooling system operated by someone who knows the specific measurements to drill and tap the WE TTI lower receiver.

I guess if you're the gubmint, 'switched out quickly' includes being able to construct a weapon from the gaseous goodness of unicorn farts.

pm