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Sig Sauer / GSG 1911 Main Spring Calibration Kit
402.20.17.1 | Sig Sauer 1911-22 | GSG 1911-22 | Mainspring for 1911 | Factory Main Spring | 1911-22 mainspring | 1911 hammer spring | 922 spring | 1911 spring | 1911springs | reduced power | trigger job | calibration kit


 
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Replace your worn out spring and improve performance. These hammer (main springs) are replacement springs for the GSG and Sig Sauer 1911-22 pistols. The factory part number for this spring is 402.20.17.1 (part #65 in the exploded diagram). These springs are not for the centerfire 1911 pistols but is specifically made for the 22LR. It is shorter than the typical 45ACP type 1911. Direct replacement factory weight main spring is 20 pounds. Just like our centerfire hammer and recoil springs for the 1911 and Glock pistols, each spring weight has a designated color to help easily identify the spring value. The reduced power hammer springs (16 & 18 pound) are for you to experiment with your trigger pull weight. Keep in mind that using too light of a spring may induce failures to fire. You can get the individual spring HERE

MSRP: $9.95
Our Price: $8.25
Savings: $1.70

Shipping: Usually Ships in 1 to 2 Business Days
Part #: 102-KTHS-0GSG
Qty:

Installation Instructions RESTRICTIONS
 
Replacement hammer / main springs for the GSG and Sig Sauer 1911-22 pistols. Kit contains 16, 18 and the factory 20 pound.
Main Spring Housing Replacement
Main Spring Housing Install

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