The hosts introduce the video and immediately focus on Zenith’s roller-delayed firearms. Zenith is described as having more than 15 years of experience with roller-delayed systems, originally using HK and MKE tooling and now producing on its own tooling in Afton, Virginia. The discussion emphasizes Zenith’s monolithic upper design and the nostalgic appeal of its platforms. The ZF-5P is presented as a compact, U.S.-made roller-delayed gun that captures the classic feel of earlier designs while using modern manufacturing. The hosts frame the segment as a straightforward look at how these guns are built and why the roller-delayed system remains relevant.
The ZF-5P is highlighted as a close analog to the MP5K, with Zenith claiming parity or better performance compared to HK MP5 standards due to its monolithic upper. The gun includes a threaded barrel and a tri-lug adapter, allowing suppressed use, and uses a common, easily swappable trigger pack, standard magazines, and interchangeable end plates. The setup shown is intentionally barebones to preserve the classic MP5K-style profile and nostalgic appearance. The hosts note that MP5 and MP5K variants remain in service with some European and Turkish police units, particularly for specialized tasks and close-quarters work. Historical references such as the Iranian Embassy siege and Operation Nimrod are mentioned to underline the platform’s long-standing operational use and iconic status.
Attention shifts to the Zenith ZF-56, a new 5.56 roller-delayed rifle that was first shown in prototype form at SHOT Show and has since been refined into the production model seen in the video. The rifle is offered in multiple barrel lengths, including 12, 14, and 16 inches, with the example shown using a 16-inch barrel to avoid NFA complications. The hosts compare it conceptually to the older HK33 but note that the ZF-56 is Zenith’s own design with multiple proprietary patents. It is presented as a modern, one-of-a-kind 5.56 roller-delayed platform. The hosts mention that they have been running the rifle on the range to confirm reliability before it goes out, emphasizing practical use rather than cosmetic setup.
The front end of the ZF-56 is configured with a VG6 Epsilon muzzle device. One host notes using the same brake on a personal AR, citing its flat shooting characteristics and relatively moderate concussion compared to more aggressive brakes. A Cloud Defensive light, identified as the Rain 3.0, is mounted near the muzzle, with the host stating that similar setups have endured thousands of rounds without issue. The light is controlled via a tailcap for momentary and constant-on use, plus a pressure pad mounted on the handguard. The pad placement is set slightly rearward so activation requires deliberate pressure rather than an accidental grip squeeze. Simple zip ties are used for cable management to keep the setup tight and out of the way. A BCM foregrip is installed to support this control layout and provide consistent hand placement.
The hosts demonstrate the ZF-56’s roller-delayed action and charging sequence. The charging handle moves freely for the first portion of travel, then hits a wall where additional force is needed to cam the rollers out of lock, similar to MP5 and G3 operation. The bolt can be locked to the rear in a familiar style, and the rifle features a fully ambidextrous control scheme. With a magazine inserted, the bolt locks open on empty, and an ambidextrous bolt catch and release allow the shooter to send the bolt forward with a downward press. The safety selector and magazine release are also ambidextrous. The rifle accepts standard AR-15 triggers and AR-15 pattern pistol grips, giving users access to a wide range of compatible fire control and grip options while retaining the roller-delayed operating system.
On the ZF-56, the optic is an EOTech Vudu 1–8x scope mounted in an ADM mount. The rifle uses an M-LOK handguard, allowing attachment of additional accessories such as lasers or offset sights. A Magpul MS1 two-point sling is attached to built-in sling points on the rifle. At the rear, the gun uses a two-pin interface compatible with JMAC 1913 adapters, enabling different stock or brace configurations. The example shown uses a fixed stock, but the hosts note that folding stocks similar to MP5-style setups can be installed. The configuration is presented as a practical, ready-to-use arrangement, with the option to add a 45-degree offset red dot or other accessories later if desired. The emphasis remains on functional ergonomics and modularity rather than extensive cosmetic customization.
The hosts discuss how the ZF-56 and ZF-5P can complement each other, whether carried separately or staged together, as shown in the video’s intro sequence. The ZF-5P is suggested as a compact bag gun that can be quickly brought into action, while the ZF-56 serves as a primary 5.56 rifle. Viewers are invited to share their experiences with Zenith firearms. The hosts mention meeting the Zenith team at SHOT Show and describe them as actively working on new roller-delayed projects, including a 300 Blackout roller-delayed platform currently in prototype form that reportedly shoots well. The video closes with an encouragement to check Zenith’s offerings, along with a brief reminder that links are available on Rumble, before signing off.
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