The Tandemkross TK12N0317BLK1 Gearbox Sear Spring is a purpose-built replacement component designed to keep your firearm’s gearbox running smoothly. Engineered as a small but critical part of the fire control system, this spring helps maintain consistent sear engagement for reliable operation shot after shot.

This dedicated accessory is ideal for shooters who want to refresh worn parts, support long-term reliability, or keep a spare on hand for maintenance. Whether you spend most of your time at the range or in training classes, a properly functioning sear spring contributes to a cleaner break and dependable performance. Backed by Tandemkross’s focus on practical upgrades and thoughtful engineering, it’s a straightforward way to support the longevity of your setup.

Key Features:

• Manufacturer: Tandemkross
• Model: TK12N0317BLK1 Gearbox Sear Spring
• Condition: New
• Unique Features: Replacement sear spring for gearbox fire control system