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: GUARDER
GUARD010
Guarder Progressive Spring for AEG with a stiffness of SP100 (M100). Offers performance of 98 - 104 m/s. Made from tempered Si-Cr wire. Progressive (irregular) winding of the spring eases compression in the initial phase. Performance consistency even after thousands of shots. Fits standard TM AEG gearboxes and manual SVDs.
: Ultimate
ULTIM057
AEG Progressive Spring M105 by ASG ULTIMATE with green marking. Color-coded stiffness for easy identification. Ideal for airsoft gun upgrades. Made from military-grade SiCr spring steel. Progressive winding for smoother startup and reduced strain on gears and motor.
: GUARDER
GUARD594
Guarder Progressive Spring for AEG Tokyo Marui PSG and SR25 with a stiffness of SP120 (PSG120). Offers a performance of 122 - 131 m/s. Made from tempered Si-Cr wire. Progressive (irregular) winding of the spring eases compression in the initial phase. Performance consistency even after thousands of shots. Fits only extended gearboxes of type IV (PSG)...
FPS-SRE-105
The 105 m/s FPS spring is calibrated in collaboration with Daniele Cimadoro of Terni Softair. In the phase immediately following forming, the spring is stabilized in the oven at a temperature of 400 degrees centigrade for thirty minutes in order to optimize its duration over time.
FPS-SRE-100
The 100 m/s FPS spring is calibrated in collaboration with Daniele Cimadoro of Terni Softair. In the phase immediately following forming, the spring is stabilized in the oven at a temperature of 400 degrees centigrade for thirty minutes in order to optimize its duration over time.
: Ultimate
ULTIM048
AEG Progressive Spring M125 by ASG ULTIMATE with orange marking. Color-coded stiffness for easy identification. Ideal for airsoft gun upgrades. Made from military-grade SiCr spring steel. Progressive winding for smoother startup and reduced strain on gears and motor.
: Ultimate
ULTIM047
AEG Progressive Spring M95 by ASG ULTIMATE with blue marking. Color-coded stiffness for easy identification. Ideal for airsoft gun upgrades. Made from military-grade SiCr spring steel. Progressive winding for smoother startup and reduced strain on gears and motor.
8818
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M190. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).
8817
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M150. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).
8816
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M140. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).
8814
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M120. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).
8813
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M110. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).
8812
Retro Arms has come out with another piece that helps you build an upgraded beast exactly to your specifications. A quality spring of standard length with progressive winding for AEG gearboxes, rated at M100. Progressive (variable) winding makes the spring easier to compress. Made from valve wire alloyed with silicon and chromium (SiCr).