Ithaca Model 100 20 Gauge Side-by-Side Shotgun, 28" Roto-Forged Barrels, 3" Chamber, M & F Chokes
This Ithaca Model 100 is a Japanese-made, SKB-built side-by-side 20 gauge produced between 1966 and 1977. It features roto-forged chrome-moly barrels, light factory scroll engraving, and an extractor-only action favored by many Cowboy Action shooters. A 3" chamber, fixed Modified and Full chokes, and an oil-finished walnut stock round out a package that balances hunting utility with collectible appeal.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
There is light rust forming on the bottom of the receiver and on the underside of the barrels, and a small scratch is present on the bottom of the buttstock.
What’s Included
- Ithaca Model 100 20 Gauge side-by-side shotgun
The 28" roto-forged barrels were marketed for their added strength and feature a solid matted rib capped by an orange fiber-optic front bead for quick target acquisition.
An L-prefix serial designates this as a 20 gauge, and the scalloped receiver shoulders add a refined visual break between the barrels and the action while showcasing the border scroll engraving.
The gun retains its original blued steel finish on both the receiver and barrels, paired with an oil-finished walnut pistol-grip stock and matching splinter forend, both factory checkered for secure handling. Length of pull measures 13.9".
A single selective trigger and automatic tang safety provide straightforward operation, while the extractor-only system keeps shells handy for deliberate removal—an attribute appreciated in certain competition environments.




