HK 81001388 VP9A1 X 9mm 4.09" Optics-Ready Pistol w/Holosun SCS, CA Compliant, 10-Round

HK 81001388 VP9A1 X 9mm 4.09" Optics-Ready Pistol w/Holosun SCS, CA Compliant, 10-Round

The HK VP9A1 X is a full-size-frame 9mm striker-fired pistol built around a 4.09-inch barrel, optics-ready serrated slide, Holosun SCS Super Green optic, and a 10-round California-compliant magazine configuration. It combines the larger VP9A1 X frame with an optic-equipped upper, textured polymer grip, ambidextrous controls, and an integrated Picatinny accessory rail.

The full-size frame is the defining distinction of the X configuration. Compared with the compact VP9A1 K, the VP9A1 X provides a longer grip profile while retaining the same 4.09-inch barrel length listed for this model. That changes the way the pistol fills the hand without turning it into a longer-barreled configuration.

The included Holosun SCS Super Green optic completes the factory setup, giving this version an electronic sighting system from the outset rather than requiring the buyer to add an optic separately.

Full-Size VP9A1 X Frame

The VP9A1 X uses a full-size black polymer frame with a textured grip and integrated Picatinny rail. The larger frame provides more gripping surface than the compact K configuration while preserving the same basic VP9A1 control layout.

That distinction matters because the VP9A1 X is not simply an optics package. Its frame geometry and grip length are part of what separates it from the compact VP9A1 K.

4.09-Inch Barrel

This model uses a 4.09-inch 9mm barrel. That barrel length is paired with the full-size frame, creating a configuration with a longer grip but without increasing the barrel length beyond the 4.09-inch format specified for this model.

The result is a pistol that changes the lower-half ergonomics more than the upper-half dimensions.

Holosun SCS Super Green Optic

The pistol is supplied with a Holosun SCS Super Green optic as part of the factory configuration. The sight is mounted to the optics-ready slide and provides an electronic aiming system without requiring a separate optic purchase.

Because the Holosun SCS is included with this exact model, it is part of the configuration itself rather than an aftermarket accessory added later.

Optics-Ready Serrated Slide

The black steel slide is configured for optic use and incorporates serrations that provide additional gripping surfaces for manual slide manipulation.

The optics-ready setup gives the VP9A1 X a factory-supported mounting interface while preserving conventional slide handling and the pistol's standard upper geometry.

Textured Polymer Grip

The full-size polymer frame uses a textured grip surface designed to provide consistent contact across the hand.

On the VP9A1 X, the longer grip profile gives the shooter more surface area than the compact K configuration, making the frame size one of the most important differences between the two models.

Ambidextrous Controls

The VP9A1 X uses an ambidextrous control layout so the pistol can be operated from either side without requiring a dedicated right- or left-handed frame.

This makes the control system more adaptable to different shooters and complements the full-size grip configuration.

Picatinny Accessory Rail

The frame incorporates a Picatinny accessory rail ahead of the trigger guard for compatible lights and other rail-mounted accessories.

The rail is integrated directly into the frame, allowing accessories to be added without altering the slide or grip assembly.

California-Compliant 10-Round Configuration

This version is configured with 10-round magazines and is identified as California compliant.

The reduced-capacity magazine setup preserves the full-size VP9A1 X frame, optic-equipped slide, and standard control layout while adapting the pistol to a 10-round magazine format.

Key Features

• HK VP9A1 X full-size-frame 9mm pistol
• California-compliant configuration
• 4.09-inch barrel
• Striker-fired semi-automatic action
• Optics-ready serrated steel slide
• Holosun SCS Super Green optic included
• Full-size black polymer frame
• Textured grip
• Ambidextrous controls
• Integrated Picatinny accessory rail
• 10-round magazine capacity
• 10+1 listed capacity

Specifications

• Manufacturer: Heckler & Koch
• Model: VP9A1 X
• MPN: 81001388
• UPC: 642230274693
• Item Number: 189187
• Caliber: 9mm Luger
• Action: Striker-Fired Semi-Automatic
• Frame Size: Full Size
• Barrel Length: 4.09"
• Capacity: 10+1
• Slide: Optics-Ready Serrated Steel
• Optic: Holosun SCS Super Green
• Frame: Black Polymer
• Grip: Textured
• Accessory Rail: Picatinny
• Controls: Ambidextrous
• Compliance: California-Compliant Configuration

The VP9A1 X Optic-Equipped Configuration

The VP9A1 X is defined by the combination of its full-size frame and 4.09-inch upper configuration. The longer grip changes the way the pistol fits the hand, while the barrel and slide remain in the compact-length format specified for this model.

The included Holosun SCS Super Green optic, optics-ready serrated slide, textured polymer frame, ambidextrous controls, Picatinny rail, and 10-round magazine format complete the California-compliant package. For buyers comparing VP9A1 variants, those features are what separate the X model from the more compact VP9A1 K.

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. You must be 18 or older to shop or purchase on our website, and 21 or older to purchase ammunition or firearms. Check local laws before ordering. By ordering, you certify that you meet all federal, state, and local legal requirements. There are no returns or exchanges on armor, firearms, ammunition, or PPE. Ammunition ships UPS Ground to the lower 48 states.
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