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no it is a Fixed modified choke barrel see ******Mossberg® 510 Mini All-purpose Pump Action .410 Bore Shotgun Since 1919, Mossberg has been the leader in introducing high-quality shotguns at an affordable price. And this Mossberg 510 Mini All-purpose Pump Action Shotgun is no exception. Designed specifically for small-framed shooters, the synthetic stock is adjustable and makes for comfortable, all-day shooting. Its sleek barrel design offers excellent balance and swing, while the ventilated top rib and dual bead sight provide you with an excellent sight line for acquiring fast-moving birds. ******Fixed modified choke Equipped with swivel studs and recoil pad Ventilated top rib

Hi Rocky and welcome. No Sir, the choke is a "Fixed Modified" Choke: https://www.mossberg.com/510-mini-super-bantam-all-purpose-field-50358.html -- Cheers and stay safe!