First Strike FSC & PepperBall TCP: Heat Core or O-Ring Kit?
Three identical Heat Core rings or a mixed chamber kit? Compare the seal positions, quantities and current specifications before ordering for your FSC or TCP.
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Z-RAM GUIDE
Z-RAM technical knowledge
Z-RAM Guides
Practical product, compatibility and installation guides for Z-RAM systems.
Milsig/Valken M17 HEAT CORE Bolt Bumpers: Cushioning or O-Rings?
The M17 HEAT CORE bumper three-pack supplies reinforced silicone cushioning parts. Compare it with the separate five-ring HE O-Ring Kit to choose the part type you need.
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Umarex TC68 Service Kit: O-Ring Care and Barrel Cleaning
Read the TC68 kit’s named seal areas and O-ring care note correctly, and distinguish replacement components from a separate barrel-cleaning tool.
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Umarex HDS68/TS68 Service Kit: Parts or Barrel Cleaning?
Separate the HDS68/TS68 replacement-parts assortment from barrel-cleaning equipment, with the exact listed CO₂ screw and swab dimensions.
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What Size Cleaning Tool Does a .68-Caliber Barrel Need?
A .68 marking, a tool's overall length and its cleaning head describe different things. Understand those differences before choosing a barrel swab or squeegee.
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