RetroArms CNC Gearbox Shell for M249/PKM, Black

The RetroArms gearbox shell is designed for M249 or PKM replicas with a quick spring change system. It is CNC-machined from EN AW 7075 T651 aluminum (duralumin) with protective anodizing against corrosion, a material stronger than ordinary steel (590 MPa versus 390 MPa).

Features

• CNC-machined 7075 T651 aluminum, anodized
• For 8 mm bushings/bearings
• Quick spring change system

Specifications

• Weight: 240 g
• Color: black

Package Contents

• Gearbox shell
• Mounting screws