Tubb SpeedLock Systems Firing Pin and Spring Remington XP-100, Model 7, Model 600 with ISS Lock
Material: Alloy composite firing pin, steel spring
Features: Firing pin is extremely light weight. A typical pin weighs 285 grains compared to a factory pin at 650 grains. Spring is extra-power but is same installed height as a factory spring.
Gunsmithing Required: Yes
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