Silverback SRS Open Piston Sear

The Silverback SRS Open Piston Sear is a precision CNC stainless steel upgrade designed for SRS platforms and enthusiasts who demand smoother bolt cycling. Inspired by Bruce Palcko’s open-piston concept, this sear aims to deliver cleaner operation and more consistent feel during cycling.

• Material: CNC Stainless Steel for precise machining and durable performance
• Open Piston Sear Design: The piston end locks onto the sear, enabling smoother bolt cycling and more consistent operation across shots
• Compatibility: Designed for Silverback SRS systems, with reference SBA-PTS-03 to aid ordering and cross-checking
• Installation Note: When reinstalling the buttplate, you must manually maintain the spring guide position
• Design Inspiration: Based on Bruce Palcko’s open piston sear concept, reflecting collaborative innovation in the SRS community

The result is a smoother, more reliable bolt cycle and improved feel during operation, backed by durable CNC craftsmanship that stands up to regular use. By locking the piston end onto the sear, this upgrade helps reduce subtle timing irregularities and contributes to consistent cycling performance. A small trade-off is the need to manually position the spring guide when reinstalling the buttplate, but this ensures the system remains secure and ready for reliable operation.