The Mesa SureShell aluminum shotshell carrier is specifically designed for Beretta 1301 shotguns featuring a secure mounting system with an integrated Picatinny sight rail. Machined from aircraft grade 6061-T6 aluminum for maximum durability and lightweight performance.Mesa SureShell Side Saddle CarrierFits Beretta 1301 shotguns6-shell capacity for 12-gauge ammunition3 1/4" Picatinny rail machined from aircraft grade 6061-T6 aluminumTactical design with left-side receiver mountingSecure fastening using top mounting screw holesProfessional appearance with superior mounting securityPerfect for tactical applications this carrier provides quick shell access while maintaining a low profile and secure attachment to your Beretta 1301 shotgun.