Parts Kit, Bolt Maintenance, Mk57, 5.7x28mm

Replacement parts for Mk57 (5.7×28) Bolt

Kit Includes:

• Mk57 (5.7×28) Extractor
• Extractor Spring
• Extractor Pin
• 1-16″ Roll Pin
• Extractor Buffer
• Mk57 (5.7×28) Ejector
• Bolt Spring
• Ejector Spring