CSMC MODEL 21 O/U 20 GAUGE

A modern interpretation of a concept Winchester explored but never brought to production, this CSMC Model 21 O/U 20 Gauge brings to life the over/under variant that existed only as a rare Winchester prototype. Built with the precision and craftsmanship CSMC is known for, it offers a refined, versatile take on the Model 21 lineage.

Fitted with 32" vent-rib barrels and screw-in chokes (SKT, IC, MOD, IM, Full) and chambered for 3" shells, it delivers excellent flexibility for upland hunting or clays. The gun features a single selective trigger, ejectors, field forearm, pistol grip, and a recoil pad, blending practical usability with classic styling.

At 7 lbs 0 oz with dimensions of 2 3/8" DAH, 1 1/2" DAC, and 14 7/16" LOP, it balances smoothly and carries cleanly. Condition is excellent, near new, showing only very light handling from storage. Cased.

A beautifully made, modern over/under execution of the Model 21—rooted in Winchester’s unrealized prototype and completed to the high standards of CSMC.