The red 7 g DESTROYER.68 aluminum projectiles are sold as reusable and list the Umarex HDR68/TR68 family. In Z-RAM’s answer about repeated use in a TR68 T4E Gen2, the important qualification was the material: the rear of the aluminum projectile can deform when it hits hard target material. “Reusable” does not mean indestructible.
The listing names the HDR68/TR68 family but does not separately confirm Gen2 compatibility.
Repeated use depends on the projectile’s condition
The product description calls the aluminum version reusable and damage-resistant. Z-RAM’s material advice explains the limit of that wording: resistance to damage is not a promise that every impact leaves the projectile unchanged. Recovering it after a shot and finding it fit for another use are different things.
There is no stated number of repeat uses in the offer or that answer. If the rear has deformed, do not assume the original reuse claim still applies to that damaged projectile. The useful takeaway is to consider its condition, not to count shots against an imagined lifetime guarantee.
Aluminum and steel are two different DESTROYER.68 offers
The red aluminum pack contains 12 CNC-machined projectiles, each listed at 7 g and 17.3 mm diameter. The separate chrome-plated steel pack also contains 12, but each is listed at 12.4 g and 17.3 mm diameter. That is a material and weight difference, not just a choice of finish.
The steel version is also described as reusable. Neither description gives a fixed reuse count, so the word should not become a promise of unlimited life for either material. Matching pack size and stated diameter also do not make the two products identical.
Compare the two DESTROYER.68 materials

12x DESTROYER.68 | CNC ALU | 7g | 17.3mm |red | HDR68 | HDS68 | FSC | Milsig
The red aluminum offer discussed here: 12 projectiles, 7 g each and 17.3 mm listed diameter. Read its reusable description together with the aluminum deformation advice above.
View red aluminum DESTROYER.68
12x DESTROYER.68 | CNC steel chrome plated | 12.4g | 17.3mm | for HDR68, HDS68, FSC, Milsig
The separate chrome-plated steel offer: 12 projectiles, 12.4 g each and 17.3 mm listed diameter. A different material option, not merely another aluminum finish.
Compare steel DESTROYER.68Explore Z-RAM’s ammunition categories
For a wider look at the shop after the DESTROYER comparison, this short introduces Z-RAM’s own projectile and parts categories.
▶ Play on YouTubeThe Ultimate Shop for RAM Tuning Parts: Ammo, Valves, Chambers, and More HDR50 TR68 FSC TCP
Channel: Z-RAM
Find the HDR68 family in the Z-RAM range
This short introduces the marker families covered by Z-RAM, including HDR68. It offers general shop orientation alongside the specific material advice above.
▶ Play on YouTubeFind the Best Umarex T4E Parts at Z-Ram.net . HDR68 TR50 HDP50 TS68 Pepperball First Strike
Channel: Z-RAM
Important Legal Notice
Laws and regulations governing the purchase, possession, installation, modification, and use of the products described on this page vary by country, state, and local jurisdiction and may change. Before purchasing, installing, modifying, or using any product, you are responsible for confirming that it is permitted in your location and for your intended purpose. Product availability or delivery does not mean that purchase, possession, installation, modification, or use is lawful in your jurisdiction. Z-RAM does not provide legal advice, and the information on this page must not be treated as legal advice. If you are unsure, contact the competent local authority or a qualified legal professional.
