Improves Auto Shotgun Reliability & Performance
Total stainless steel recoil spring system solves cycling problems caused by recoil system rust and corrosion; completely impervious to salt water, humidity and rain. Precision machined to exacting tolerances; reliably cycles all loads, including magnum and light target loads. Provides an increase in the cyclic rate that lets you get those second and third shots off quickly. Operates dry; requires no lubes or oils that can harden and slow down action in cold weather. Installs easily without modifications to gun.
Big Book Catalog, Issue:70, Page:196
SPECS: Stainless steel. Approx. 9½" (24cm) long. 21mm threads are made of aluminum. If your spring tube is aluminum, this is the one you need. Benelli SBE: fits SBE shotguns with serial numbers lower than 185000, and M1 Super 90 and Montefeltro with serial numbers lower than 470000 but above 155400. All factory spring tube systems with 19mm threads are made of steel. Benelli M1 fits M1 Super 90 and Montefeltro shotguns with serial numbers below 155400 and has a steel 19mm threaded spring tube system. Beretta AL 390 fits AL390, A390 and N391, 12 and 20 ga.