New style Olive Spring Loaded Bearings (SLB) are for use with new style Loaded Chamber Indicator (LCI) extractors only. They are shorter than the original SLB and cannot be used with the old style extractors. Part number 7 on the Glock Schematic.
Reviews
-
SLB
Broke my SLB in half, could not find anyone that carried them for Gen4 but here. Ordered a few since it is a little considered part that will render your weapon useless. Now my Glock is back in the fight!