Glock Rwb Mag Glock 40sw 31rd These .40 Cal High capacity Magazines (31 Rounds) are high quality, non-factory Glock Magazines. SKU: Rwb Mag Glock 40sw 31rd Category: Accessories Related products John Rigby & Co Canvas Rifle slip AccessoriesQuick view icon Blaser ABS Rifle Case AccessoriesQuick view icon John Rigby & Co Elasticated Leather Bullet Pouch AccessoriesQuick view icon John Rigby & Co Rigby Highlan Stalker Muzzle Protector AccessoriesQuick view icon