MXT-SP-045-50 Nordic Components 12GA 45" HD Extension Tube Spring

The Nordic Components 12GA 45" HD Extension Tube Spring (MXT-SP-045-50) has extra length to allow fitting to the magazine, heavy-duty strength, and recommended for applications where magazine capacity is 13 or more.

Note: Due to magazine spring tension issues, it is not recommend using an HD spring in the following shotguns.

• Mossberg 930 (all models)
• Browning Gold