Despite what some idiots have said in the past, it is legal to install a Hi-Capacity Magazine in a Post-Ban. I had one FFL when I was trying to sell a military type firearm with 30 round magazine tell me that it was illegal to insert a hi-capacity magazine in a Post-Ban rifle. I challanged him on the issue (I knew the AW Ban Backwards and Fowards). I stated that the Hi-Capacity Detachable Magazine *Capability* is a defining feature of SAAWs under the 1994 AW Ban. But, as long as the firearm did not have 2 or more evil features it was legal. And, as mine only had 1 evil feature it was legal. I explained the list of evil features as Pistol Grip, Bayonet Lug, Folding Stock, Grenade Launcher, Flash Hider, and Threaded Barrel. He then said that Pistol Grips weren't an issue under "the Brady Law" and that my rifle was illegal. I proceded to inform him that #1 the Brady law and AW Ban are 2 different beasts with the Brady law mandating Background Checks and prohibiting minors from possessing handguns while the AW Ban covered evil features. He became inisistent that he was right. So, I looked on his wall and challanged him to justify his position since he had an AK-47 Type and AR-15 Type rifle on his wall, both with Hi-Caps. inserted in them. He then proceeds to say that they are Pre-Bans. I try to explain that they are not Pre-Bans since they are obvious post-bans (Crowned barrel w/ no threads, No bayonet Lug, Fixed stock, etc...) He then says, "yes they are and they can have 3 evil features..." Another guy tried to explain to this idiot how wrong he was, but he just blew us off by stating that he was an FFL and he should know what he's talking about.
I just walked away since it was obvious there was no convincing this idiot. I just hope he doesn't try selling those obvious Post-Ban rifles telling the buyer they are Pre-Bans.