Briley Beretta/Benelli/Franchi/Stoeger 12 Gauge 6-Round Shotgun Magazine Extension with Swivel Carbon Fiber

Briley Shotgun Magazine Extension w/Swivel Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 6 Rounds Carbon Fiber Black TSPA-101CSW. The carbon tube has a Delrin collar. Extensions are sold with a black anodized finish on the aluminum but Blue Gold and Red is available on request and will take approximately three weeks. Note: The clamp spacer position on the extension is good for any barrel 24 inches or longer. Shorter barrels will require custom positioning of the spacer. Specifications for Briley Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 8 Rounds Shotgun Magazine Extension w/Swivel: Manufacturer: Briley Color: Black Finish: Carbon Fiber Fabric/Material: 6061 Aluminum Gun Make: Franchi Benelli Beretta Stoeger Gun Model: Benelli Nova Benelli SuperNova Beretta A350 Beretta 1301 Competition Stoeger M3K Beretta Tx4 Storm Stoeger M3500 Stoeger M3000 Franchi Model 912 Beretta A300 Beretta A400 Xtreme Beretta A391 Xtrema II Caliber: 12 Gauge Features of Briley Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 8 Rounds Shotgun Magazine Extension w/Swivel Benelli Nova and Super Nova Beretta 1301 Comp 1301 Competition Pro A300 Xtrema A350 A400 Extreme Unico Extreme Plus Lite Extrema I and II TX4 Franchi 912 Vairomax Stoeger 3500 3000 M3K Package Contents: Briley Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 8 Rounds Shotgun Magazine Extension w/Swivel Barrel Clamp Spring What firearm models does the manufacturer say Briley Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 8 Rounds Shotgun Magazine Extension w/Swivel is compatible with? The manufacturer says that Briley Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 8 Rounds Shotgun Magazine Extension w/Swivel is compatible with Benelli SuperNova Benelli Nova Beretta 1301 Competition Beretta A391 Xtrema II Beretta A400 Xtreme Beretta A300 Franchi Model 912 Stoeger M3500 Stoeger M3000 Stoeger M3K Beretta Tx4 Storm Beretta A350Briley TSPA-101CSW: Shotgun Magazine Extension w/Swivel Beretta Auto/Benelli Pump/Franchi 912 Variomax/Stoeger + 6 Rounds Carbon Fiber Black