Beretta MobilChoke 12 Gauge Full Flush Choke Tube, Silver - JCTUBE13

MOBILCHOKE FLUSH 12GA - These choke tubes are factory OEM replacements for 12 gauge guns with the Mobilchoke system. The conical parallel design of results in reduced shot deformation, improved pattern uniformity and increased pattern density
COMPATIBILITY - These choke tubes will only fit 12 gauge guns with the Mobilchoke system. They are compatible with Beretta Silver Pigeon I (field models), A300 Outlander, 687 (field models), and some 391 Models
SPECS - The start of threaded portion of the 12Ga Mobilchoke tube is located a nominal 41.5mm (1.63") from the breech end of the choke tube. The length of threaded portion is a nominal 9.15mm (.360"). The major diameter of thread is 20.62mm (.811")
ENGRAVED DETAILS - Every choke tube has information engraved on the tube to identify the manufacturer (PB), the constriction (F, IM, M, IC, CYL), the approval for steel shot use (SP), the choke type (Optima-Choke, Optima-Choke Plus, Optima-Choke HP)
USAGE ADVISE - As with any gun, always be sure to check your choke tubes during use to verify that they are tight in the barrel. Loose choke tubes can cause barrel damage