Spring

AMP Tactical AMP100 High Performance Spring Features & Specs: Manufacturer: AMP Model: AMP100 Muzzle Velocity: Approx 320-340fps 100 m/s Spring Package Includes: Spring only

AMP Tactical AMP110 High Performance Spring Features & Specs: Manufacturer: AMP Model: AMP110 Muzzle Velocity: Approx 350-380fps 100 m/s Spring Package Includes: Spring only

AMP Tactical AMP120 High Performance Spring Features & Specs: Manufacturer: AMP Model: AMP120 Muzzle Velocity: Approx 380-410fps 120 m/s spring Package Includes: Spring only

AMP Tactical AMP130 High Performance Spring Features & Specs: Manufacturer: AMP Model: AMP130 Muzzle Velocity: Approx 450-470fps 130 m/s spring Package Includes: Spring only