The Specna Arms CORE V2 gearbox shell is a technical spare part designed for AR15 and M4 replicas from the CORE series, built to provide a solid base for maintenance, replacement, or rebuilding of the mechanical unit. Its metal construction and compatibility with the ESA quick spring change system make it a focused component for users looking for structural reliability and proper integration with the replica architecture. The set also includes 8 mm bushings, an important detail for a clean and functional assembly.

Technical details

• Brand: Specna Arms
• Model: CORE V2 Gearbox Shell for AR15 replicas
• Product reference: SPE 08 027529
• Material: metal
• Compatibility: Specna Arms CORE AR15 and M4 replicas
• System: ESA quick spring change
• Bushings included: 8 mm
• Weight: 295 g
• EAN13: 5902543292735

Package contents

• V2 gearbox shell
• 8 mm bushing kit

How to use

• Check full compatibility with the replica before installation
• Install the shell according to the V2 gearbox layout and ESA system
• Use only compatible and properly maintained internal components
• Carefully verify alignment before closing the unit
• After assembly, confirm smooth operation and correct gearbox behavior

Safety warnings

• Do not tamper with or force the shell during installation
• Installation should be carried out by a technically competent person
• Use only compatible and suitable components
• Always verify tightening and alignment before use
• Keep out of reach of children
• Incorrect assembly may affect performance, safety, and replica reliability