The GG&G Side Saddle Shell Holder provides fast access to your rounds at an angle that matches your hand. Maximize your shotgun for tactical flexibility. FeaturesDurable, oil resistant, replaceable shotshell retention systemMounts to receiver using steel trigger pin replacement bolts (included)Non-marring backing plateShotshells can be retained in base up or base down position6061 T-6 Aluminum ConstructionType III Hard Anodized Black per Mil-SpecErgonomic design including lighting cuts for weight reductionAll edges have been round for shooter's safety