The bare Z-RAM firing bolt for Umarex HDR50/HDP50 does not add power on its own. The current offer is a standard steel replacement bolt, supplied without a pin—not a Powerkit or a bolt-plus-Power-Pin package.
What the standalone offer gives you
The .50 product lists one Z-RAM bolt for HDR50/HDP50. Its stated model scope also names TR50 and TP50. “No pin included” is important: the bolt and the Power-Pin are separately named components, even when another offer packages them together.
Choose the bare part for a confirmed need for that exact replacement component.
Keep the HDR68/TR68 bolt separate
Z-RAM also offers a standard bolt specifically for Umarex HDR68/TR68. That listing supplies one bolt with no pin included. It is a separate model-specific offer, not the .50 bolt renamed for another caliber.
The useful first distinction is therefore the exact component and model—not a comparison of advertised output figures. The .50 offer names HDR50/TR50 and HDP50/TP50; the .68 offer names HDR68/TR68. Their common “firing bolt” wording does not establish a common length, interchangeable geometry or a universal fit.
Two model-specific standard bolts
Firing Bolt steel for Umarex HDR50 TR50
Standard steel bolt listed for HDR50/TR50 and HDP50/TP50. One bolt is supplied; no pin is included.
View the .50 standard boltFiring Bolt steel for Umarex HDR68 TR68
Separate standard bolt listed for Umarex HDR68/TR68. One bolt is supplied; no pin is included.
View the HDR68/TR68 boltA different package: firing bolt plus Power-Pin
This short introduces the combined firing bolt and Power-Pin, not the bare bolt. Its advertised performance figures belong to that different package and are not a stand-alone bolt result.
▶ Play on YouTube🚀Easy installation #powerkit with #zram Firing-Bolt for #umarex #HDR50 #TR50 #HDP50 #TP50 #airgun 😎
Channel: Z-RAM
Explore more Z-RAM product categories
This short introduces Z-RAM’s own-brand categories after the specific product question above. It is optional range context, not a demonstration of the exact parts.
▶ Play on YouTubeThe Ultimate Shop for RAM Tuning Parts: Ammo, Valves, Chambers, and More HDR50 TR68 FSC TCP
Channel: Z-RAM
Important Legal Notice
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