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Umarex HDR68/TR68 Part 2: Tuning Barrel, Two Z-Extensions and Z-Drum Sealing
Part 2 completes the Umarex HDR68/TR68 tuning setup with the barrel, two Z-Extensions and Z-Drum, covering Z.68s fit, sealing and a CO₂ chronograph test.
NxWerks Pistelle X-68 Tuning Barrel: Steel Construction, Performance and Cover
Z-RAM describes its steel tuning barrel for the NxWerks Pistelle X-68 as providing a noticeable performance increase, but does not publish an isolated Joule result for this barrel alone. Its...
NxWerks Pistelle X-68: Factory Barrel vs. Z-RAM Steel
The original Pistelle barrel and the Z-RAM STEEL or ALU replacement sets are different items. Understand the material distinction before choosing a barrel.
Umarex HDR50/TR50 Tec9: Long Version, XXL Barrel and CO2 Options
Z-RAM presents the long Umarex HDR50/TR50 Tec9 build, its XXL barrel extension, CO2 options, stock and projectiles, then demonstrates the conversion.
First Strike FSC and PepperBall TCP: Z.68s Barrel Adaptation and Four CO2 Capsule Tests
Z-RAM adapts the FSC/TCP barrel for Z.68s projectiles, prepares the magazine and compares 8, 12, 16 and 20 g CO2 capsules on the chronograph.
First Strike FSC Z-Extension, Part 1: 51 J and 67 J Comparison with a 7-Inch Barrel
Z-RAM compares the First Strike FSC with and without the Z-Extension, using the Z-Mag, 20 g capsules, Z.68s projectiles and a 7-inch barrel.
Beeman BP50: Which Z-RAM Stainless-Steel Barrel Offer?
The Beeman BP50 barrel line includes three different purchases. Compare the standalone barrel, the two-piece set and the attachment for an existing compatible barrel.
Will an Umarex HDR68/TR68 Steel Barrel Fit an HDB68/TB68?
A shared .68 caliber does not make HDR68/TR68 and HDB68/TB68 replacement barrels interchangeable. Identify the model and the component before comparing packages.
Umarex HDP50/TP50 Compact Steel Barrel: Function, Thread and Rail Choices
The Z-RAM Compact steel tuning barrel for the Umarex T4E HDP50/TP50 combines a threaded muzzle with an anti-rotation notch and burnished-steel construction. Z-RAM describes improvements in power and precision but...
Umarex HDR50/TR50 Steel Barrel: Do You Need Shaped Projectiles?
Round balls remain a projectile shape to consider after a barrel change. That does not make every .50 ball a confirmed match for every replacement barrel.
Z.50 Prototype Tests: Standard Umarex HDR50/TR50 and Tuning-Kit Comparison
Z-RAM compares Z.50 prototypes in the 11 J HDR50 and tuning-kit setups, discusses the results and previews the next Smith & Wesson project.
IntruBuster Gen2 Barrel Set: Can You Omit the Extension?
Separate the IntruBuster Gen2 complete set from the individually listed extension, and understand what the current offers do—and do not—let you buy separately.
Umarex HDR50-L Laser vs. TR50: Z-RAM Barrel Fit
The L-specific barrel set and the standard HDR50/TR50 barrel are not interchangeable choices. A Joule description or matching bore size does not settle model fit.
Umarex HDR50/TR50 Tuning Comparison: Z-Extension, PowerKit and HPA up to 47 Joules
Follow Z-RAM's historical HDR50/TR50 comparison of the Z-Extension, PowerKit, Modify Pin and HPA, with original test conditions and results up to 47 joules.
First Strike FSC / PepperBall TCP PowerPin: 14 J Gain, Over 70 J Total and Steel Chamber Installation
Z-RAM's FSC/TCP PowerPin video recalls a 14 J gain and over 70 J total, then covers installation, the steel chamber and the original cautions.