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AIRSOFTCON 2026 - October 17, 2026

Matrix Graphite Upper Rail Mount for Hi-CAPA Series Airsoft GBB Pistol - Silver

ID: 63390 (MNT-GB-281-S)
GB-281-S
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5KU

$29.95

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Serving enthusiasts for over 25 years
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Product Description

Features:

  • Easily attaches to gun by replacing the slide catch and upper grip screw (screw and spacer included)
  • 20mm Picatinny Upper Rail perfect for most optics
  • CNC Aluminum construction with high Strength Woven Graphite Support
Compatibility: Tokyo Marui, WE, KJW and other compatible Hi-CAPA model GBB pistols. Some modification required.

Material: CNC Aluminum, Woven Graphite
Manufacturer: 5KU

Disclaimer: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required.

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5KU

About 5KU

5KU is a division of APS Limited, focused on manufacturing high quality aluminum and steel external upgrade accessories for AEG and GBB airsoft guns.