deflector brake kit: guides spent brass into pile, protects rifle paint/coating, saves brass for re-loading, prevents brass-burn, fits standard brass deflectors (black) deflector brake the deflector brake solves a number of common problems that face shooters. flattened case mouths and dented brass cost time and money; expensive paint/coatings immediately start to wear from getting hit with brass; spent casings erratically fly all over including towards left handed shooters and at those next to you on the range. these common problems are all solved by the deflector brake.