A tune up kit for the FM 90 Detective
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16.5 lb Single-coiled BHSpringSolutions Optimized Compact Hi Power Recoil Spring.
Made with BHSpringSolutions proprietary Closing Coil ends, designed to Optimize Spring Performance throughout the recoil cycle – specifically, the BHSS Closing Coil provides maximum resistance at the beginning of recoil, prior to barrel unlocking from slide – contributing to excellent Hi Power accuracy.2 TRIGGER RESET SPRINGS 2-Coil TACTICAL Trigger Reset Spring is the heavier of the BHSS Trigger Return Springs and provides a more authoritative forward trigger reset. Excellent for tactical and carry uses. 3-Coil TARGET Trigger Reset Spring lightens trigger pull while retaining sufficient reset for the preferences of some shooters for carry use. EXTRACTOR SPRING A Tiny SPRING that is hand made from start to finish. Also known as, pound for pound, the hardest working spring in the Hi Power design. When this spring becomes too weak, it causes malfunctions. The BHSpringSolutions Extractor Spring equals or exceeds the most robust Extractor Springs ever produced for the Hi Power design, and hand filed on each end for optimal flat surface contact. We recommend Extractor Spring Replacement every 5 Years or 5,000 Rounds. FIRING PIN SPRINGRetains the Firing Pin in it’s rearward most position. The BHSS Firing Pin Spring included in this kit is different for Hi-Powers equipped with Drop Safety System (sear lever spring) and for those without Drop Safety System. MAIN (HAMMER) SPRINGAnother hard working spring that is not equal in all Hi Powers and Clones. Using the correct main spring for your model Hi Power is critical to proper function. Made with all the benefits of BHSpringSolutions build quality and Closing Coil design.In this kit you'll find 3 different main springs:
BHSpringSolutions tests it’s recoil springs by mechanically cycling, 10,000 times, a representative sample of each production run. Typical result after 10,000 cycles is a loss of only 1mm of relaxed recoil spring length, and only ½ lb of resistance – remaining “fit for service” (within acceptable specs for use in the Hi Power design).
All BHSpringSolutions Coil Springs are made with BHSS Optimized “Closing Coil” on both ends, and certain springs are further hand-filed on each end for maximum surface contact and performance.
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