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Designed to replace one or more of the existing weights of the JP Silent Captured Spring or VMOS™ Bolt Carrier, these tungsten weights are the standard components used for reciprocating mass in the operating system.
SCS Generation Selection
To ensure compatibility with your unit, verify that you have a GEN 2 Silent Captured Spring unit. The guide rod of the first generation SCS is stainless while the GEN 2 rods are bronze.
VMOS™ carriers use the same masses as the GEN 2 Silent Captured Springs.
JPSCS-HM - First Generation mass
JPSCS2-HM-2 - GEN 2 mass
Weight: 1.5 oz.
Article number: JPSCS-Tungsten