Glock Spring Load Bearing LCI 40 S&W, 357 Sig & 45 GAP

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New style Spring Loaded Bearings (SLB) used in all current issue 40 S&W, 357 Sig and 45 GAP Finger Grip & Rail (FGR) frames.  The SLB 3439 is shorter than the original SLB and cannot be used with the old style extractors. 
  • MUST be used with new style Loaded Chamber Indicator.
  • 40 S&W & 357 Sig extractor 1899 uses SLB 3439.
  • 45 GAP extractor 1902 uses SLB 3439.
  • Part number 7 on the schematic.

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