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Model 638-2 (
Exterior dimensions: 15" × 9
durable appearance
Measure your barrel tip to tip before ordering
Smith & Wesson J Frame Gas Ring New Part 218450000 n58u Model 638-2 (Smith & Wesson J Frame Gas Ring Part Number: 218450000 Condition: Factory New OEM Part Frame: J Frame Part Type: Gas Ring The Smith & Wesson gas ring seals the gap between the cylinder and the crane, preventing gas from escaping during firing. A worn or damaged gas ring can cause leading, reduced velocity, and cylinder timing issues. This factory original replacement part restores proper cylinder seal and function. Compatible Models Model 331 Model
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