Discover the Silverback Airsoft 90 Newton mainspring for SRS & TAC-41 replicas — a precision upgrade that boosts consistency, trigger response, and overall reliability. This 90 Newton mainspring for SRS and TAC-41 replicas is compatible with the APS 13 mm standard (9 mm spring guide) and features a durable black coating with laser markings for quick identification. ⚙️🎯

• 90 Newton power rating — delivers stable FPS and reliable cycling for SRS and TAC-41 replicas.
• Wide compatibility — designed for SRS replicas (excluding Push-Bolt) and all TAC-41 replicas, making it a versatile upgrade.
• APS 13 mm standard fit — supports a 9 mm spring guide for straightforward, drop-in installation.
• Durable black coating and laser markings — enhances durability and lets you identify the correct spring quickly on the bench or field.
• Trusted Silverback Airsoft engineering — backed by the brand's reputation for reliable internals and performance.
• Easy upgrade for consistent performance — simple swap that yields repeatable power and cycling.

Technical specifications

• Power: 90 N
• Compatibility: SRS replicas (excluding Push-Bolt) and TAC-41 replicas
• Standard: APS 13 mm standard with 9 mm spring guide
• Finish: Black coating with laser markings for easy identification
• Brand: Silverback Airsoft
• Type: Mainspring (internal upgrade)