Z-RAM New Version Red Dot Sight: 20/22 mm Picatinny Compatibility
A rail-first compatibility guide for the Z-RAM New Version Red Dot Sight, its reticles, dimensions and supplied parts.
Read guide
Z-RAM GUIDE
Z-RAM technical knowledge
Z-RAM 指南
Practical product, compatibility and installation guides for Z-RAM systems.
Umarex T4E HDP50/TP50 Gen1 and Gen2 Picatinny Rail Fit
A generation-specific fit and installation guide for the Z-RAM HDP50/TP50 Picatinny rail and its supplied hardware.
Read guide