Winchester installed several choke devices at the factory. Starting in 1928 the Cutts was available on 12ga M12s and in 1939 they were offered on 16ga guns. Cutts were offered in the 529,000 to 700,000 serial number range. Other choke systems offered from the factory were Lyman Adjustable, Lymn Adjustable with Recoil Chamber, Lyman Economy, Standard and Vented Poly-Choke, and the Weaver Choke. Guns with these chokes installed at the factory had no choke markings on the barrel and usually had a forged shoulder at the muzzel to accomodate the choke. These chokes were a special order item and were furnished on 28" barrels unless a different legnth was specified.
