SHOTGUN: ISTANBUL SILAH MODEL WINCHESTER SUPER X PUMP (SXP) IMPORTED BY BACO, SERIAL NUMBER TR6025-023656SP, CAMOUFLAGE, YES - INCLUDES ORIGINAL BOX AND PAPERS, PUMP, 12 GAUGE, 28" Notes: Istanbul Silah Winchester Super X Pump (SXP)- 12 gauge Manufacturer: Istanbul Silah, Turkey, for Winchester Repeating Arms Model: Super X Pump (SXP) Gauge: 12 gauge Action: Pump-action with an inertia-assisted cycling system. Recoil helps start the fore-end moving rearward, making the action notably quick to cycle. Bolt: Rotary bolt that locks into the barrel extension, providing a strong locking arrangement. Chamber: Current SXP 12-gauge models generally use a 3-inch chamber; some older SXP variants were offered with 3 1/2-inch chambers, so the markings on the individual shotgun matter. Magazine: Capacity varies by model. For a standard 3-inch SXP, Winchester specifies up to four 2 3/4-inch or three 3-inch shells in the magazine when the limiting plug is removed. Chokes: Many hunting/field versions use Winchester's Invector-Plus interchangeable choke system. Construction: SXP versions commonly use an aluminum receiver and steel barrel; particular models differ in finishes, stocks, sights and barrel lengths.