Our brass ammo catchers cut down spent brass collection to mere seconds; instead of having to rake up all your expended casings and separating each caliber after a long day at the rifle range, collecting all your brass onto a bucket is as easy as using the quick detach features. Just un-zip the mesh catch bag over a bucket for each rifle caliber, that's it.  Our brass catch mounting options include velcro, pinch-clip, and picatinny rail mount.