The Pioneer Arms GROM AK-47

Introduction to the Pioneer Arms GROM Series

The video introduces the Pioneer Arms GROM series as new AK-style rifles based on the company’s earlier Hellpup designs. The primary focus is on AK-47 pattern rifles chambered in 7.62x39, with mention of additional GROM variants. The host emphasizes that these rifles are intended to offer a high degree of variation and user customization compared to more traditional AK setups. The GROM line is presented as a fresh take on the AK platform from Pioneer Arms, retaining recognizable AK-47 characteristics while adding features that support different configurations and accessories.

Barrel, Faux Suppressor, and Gas Block Features

The GROM rifles shown feature a pinned and welded faux suppressor that extends the barrel to a legal rifle length while maintaining a compact overall profile. Moving rearward, the rifle uses a 90-degree gas block with an integrated front sight post. This configuration keeps with classic AK-47 styling and contributes to a compressed, traditional AK feel. The combination of the extended barrel with faux suppressor and the integrated gas block and sight arrangement is highlighted as a way to preserve the familiar AK appearance while meeting length requirements and maintaining a short, maneuverable form factor.

Modular Tang System and Stock Compatibility

A key design element of the GROM series is the rear tang system. This tang attaches to the back of the receiver and serves as the mounting point for multiple stock types. The video explains that the tang allows installation of side-folding stocks, underfolder-style stocks, telescoping stocks, as well as more traditional wood and polymer fixed stocks. The buffer-tube-style adapter for the adjustable stock and the standard polymer stock both screw directly into this tang. This approach is presented as the foundation of the rifle’s modularity, enabling users to change stocks and tailor the rifle’s configuration without altering the core receiver.

Side-Folding Stock Configuration

One GROM configuration uses a side-folding stock. A button on the stock allows it to fold to the right side of the rifle, where it locks securely in place. Pressing the button again returns the stock to the extended position. Folding to the right keeps the left side clear for optics and maintains access to any optic mounted on the rifle even when the stock is folded. This layout is described as a deliberate design choice to preserve optic usability and maintain a compact profile when the stock is folded, while still allowing the rifle to be stored or transported more easily.

Underfolder Stock and Sling Mount

Another variant features an underfolder stock. A button on the left side of the receiver releases the stock, allowing it to fold under the rifle. The stock extends past the magazine well, and the rifle can still be operated with the stock folded and a magazine inserted. When deployed, the underfolder provides a horizontal support that functions as a basic cheek rest to improve sight alignment. On the left side, the rifle includes a sling mount, giving users a straightforward attachment point for a sling. The underfolder version does not include an optics side mount due to the way the stock folds along the receiver.

Polymer Stock with Integrated Storage

The polymer stock option is shaped to resemble a traditional AKM-style fixed stock. It includes a small access port on the side or bottom that can be opened using a cartridge, Allen wrench, or similar tool. Inside is a concealed storage compartment suitable for small items such as cleaning supplies or other compact accessories. This stock maintains a conventional profile while adding practical onboard storage. It mounts directly to the tang like the other stock options, allowing it to be swapped with side-folding, underfolder, or telescoping configurations as user preferences change.

Telescoping Stock and Quad Rail Variant

The telescoping stock configuration is presented as a standout GROM variant. This setup uses a buffer-tube-style adapter threaded into the tang, supporting an adjustable, collapsible stock. The rifle shown with this stock also features a quad rail handguard, contrasting with the polymer and wood handguard options available on other GROM models. The quad rail allows mounting accessories such as lights, grips, or other rail-mounted equipment. Sling attachment points are located on both sides of the telescoping stock. Most GROM rifles include an optics side mount, with the underfolder as the primary exception due to its folding mechanism.

Controls, Trigger Characteristics, and Overall Impressions

Across the GROM lineup, the rear sight remains consistent, following a standard AK pattern. The rifles incorporate an enhanced safety lever with a manipulation shelf that acts as a thumb rest, making it easier to sweep the safety on and off. They also feature an extended safety or magazine release that simplifies removing and inserting magazines. The trigger is described as having a short take-up followed by a light, crisp break, with a similarly short and distinct reset. Despite the 16-inch barrel length, the overall configuration feels compact due to the faux suppressor and stock options. The video concludes by characterizing the GROM as a modernized AK-47 style rifle that retains a classic shooting experience while emphasizing modularity and user-configurable features.