No More Flying Brass, Ideal For Reloaders Fits all AR-15 receivers, both flattop and carry handle, to catch spent brass for reloading. Attaches to handguard with a rubber-backed hook and loop band. Sturdy wire frame holds catcher securely over ejection port; mounts without modification or interference with operating controls. Durable nylon mesh bag gives a visual check if bag is full; zippered bottom allows easy emptying without removing catcher. Holds up to 40 rounds.