Ithaca Model 37 Defense 12 Gauge Pump-Action, 18.5" Cylinder Bore, 3" Chamber, Bottom-Eject, Walnut Stock, Matte Black
This Ithaca Model 37 Defense is a U.S.-made 12 gauge pump-action with the classic bottom-eject, bottom-load receiver and a purpose-built 18.5" plain barrel. It features a true cylinder bore and a 3" chamber, combining straightforward defensive configuration with traditional walnut furniture and a matte black finish. Barrel rollmarks note "DEF 18.5" and "3" CHAMBER," and the observed DEF-M37 serial prefix aligns with the Defense series.
The shotgun includes an oil-finished walnut stock with a straight-comb and black rubber recoil pad, plus a grooved "corn-cob" wood forend. A brass bead front sight and cross-bolt safety round out a clean, practical layout. Stated capacity is 3+1, and the knurled magazine cap and sling-stud mounting hole on the barrel/magazine lug add useful features without excess bulk.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: There are light marks from prior handling and use. The bore is bright and clean. See the photos for a close look at the surfaces and markings.
What’s Included
- Owner's Manual
The Defense configuration centers on an 18.5" plain barrel with a cylinder bore for consistent, unobstructed patterns. Its 3" chamber supports a wide range of 12 gauge loads, and the stated capacity is 3+1.
The receiver loads and ejects from the bottom, a hallmark of the Model 37 design. A cross-bolt safety provides simple, positive control, and a brass bead front sight delivers a clean sight picture.
Furniture is traditional and durable: oil-finished walnut stock with a straight-comb, complemented by a black rubber recoil pad, and a grooved "corn-cob" wood forend for secure purchase. Length of pull is 14.0".
The matte black finish presents a non-reflective profile. Practical hardware details include a knurled magazine cap and a sling-stud mounting hole on the barrel/magazine lug.
Markings read "ITHACA GUN COMPANY UPPER SANDUSKY, OH" and "MADE IN USA," with barrel rollmarks "DEF 18.5" and "3" CHAMBER." The observed serial prefix "DEF-M37" corresponds to the Defense series.