I posted this as a response in another forum, but it's probably of interest to a wider audience, so I thought I'd post it here too.

The 3Bucc brass catchers are by far the best brass catchers I've seen:

www.3bucc.com





These guys were at the BRC and had a bunch of models, including ones not yet listed here.  They have mounts for flattops and carry handle AR models and also integrated with scope rings.  I have one for my FAL (integrated with DSA's flattop rail, and sold by DSA) and one for my ARs.  I plan to get a few more.

They also have the bags in several other colors and camo patterns.




Here's a review:

www.gunblast.com/3Bucc_Brass_Catcher.htm

I can't recommend them highly enough.  I've been using mine for over a year and have been 100% satisified.

-Troy

Folks always ask me about them when they see them at the range.  I've tried several designs, and these are so far superior to the others I've used that a comparison is hardly fair.

I like that I can leave the bottom open and allow the brass to drop right in a box or bag for reloading.  It keeps me from having to empty the bag all the time, and I never have to chase brass.  I also like how easy it is to remove and replace the bag.  And the best part is that I have yet to have a failure related to the brass catcher, which had been a constant problem with both the hard plastic and velcro-on designs.

Now if only it could turn all that Berdan brass into Boxer...  

-Troy