Z-RAM Tec9 Compact for Umarex HDR50/TR50: Do You Need New Internals?
The Tec9 Compact accepts the original Umarex HDR50/TR50 valve. Explore the new exterior, holder design and separate Full, holder and rail-cover choices.
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Z-RAM GUIDE
Z-RAM technical knowledge
Z-RAM Przewodniki
Practical product, compatibility and installation guides for Z-RAM systems.
TAC-MAG T4 or T4T V2 for Stock Umarex HDR50/TR50 Drums?
The TAC-MAG T4 Little Baby fits standard Umarex HDR50/TR50 drums. Compare its purpose with T4T V2 and distinguish drum compatibility from the holder's mounting configuration.
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