Tubb SpeedLock Systems Firing Pin and Spring Winchester Model 70 Post-64 Short Action

Product #: 145300 Tubb #: SL70S
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Product Information

These firing pin and spring kits are designed to reduce lock time, usually by about 40 percent. The result is increased accuracy at all distances. Each kit includes a Speedlock CS spring and a firing pin. Gunsmith installation required.

Technical Information

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

  • Also fits pre-64. Instructions are included to modify for pre-64.
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