BudsGunShop.com - Chambers and ejectors

it has extractors and a 3 inch chamber ATI’s Cavalry hunting and sporting shotgun has a receiver made from lightweight, high-grade 7075 aluminum and features an intricate, laser-engraved design. It has an oil-finished Turkish Walnut stock and forend with blued 4140 chrome moly steel barrels with a brass bead front sight. These over/under shotguns have a single selective trigger, and includes five (5) interchangeable chokes. The Cavalry series weigh in at just over 6 lbs., and they are hand fit at the factory.
This SV model is a 28-gauge with 3″ chamber, extractor, and 26″ barrel. It has a 14.23″ LOP, with a 1.45″ drop at comb, and 2.2″ drop at the heel.
Specifications
Brand: ATI
Action: Over/Under
Gauge: 28 Gauge
Barrel Length: 26”
Weight: 6 lbs
Barrel Length Range: 26.00” to 27.99”

William, yes, this model (by UPC code) has 3" Chambers and have Extractors. Details here: (americantactical.us/catalyst.aspx)