M249 Inner Barrel Lock

RetroArms Inner Barrel Lock for M249 Hop-Up Chambers
It is a small but important component of the barrel and chamber assembly that helps keep the barrel in the correct position. The design now includes an inner barrel position locking feature that helps reduce unwanted movement inside the chamber. The lock is made from injection-molded polyamide, combining low weight with the durability required for this type of stressed component. It is designed for RetroArms M249 hop-up chambers and, according to the manufacturer, can also be used with compatible hop-up chambers from other manufacturers. It is suitable as a replacement part during servicing, when replacing a damaged original lock or when assembling a hop-up system.
Key Features

For M249 Hop-Up Chambers
The lock is designed to secure the inner barrel in an M249 hop-up chamber and is suitable as a replacement or service part.

Inner Barrel Position Locking
The design includes an inner barrel position locking feature that helps reduce unwanted movement after installation in the chamber.

Durable Polyamide
The lock is made from polyamide, providing the required durability while retaining a degree of flexibility in the plastic component.

Injection-Molded Construction
The part is produced by plastic injection molding, allowing repeatable geometry that is important for correct barrel retention.

Compatible With Other Chambers
In addition to RetroArms hop-up chambers, the lock can also be used, according to the manufacturer, with compatible M249 hop-up chambers from other manufacturers.

Technical Specifications

Type: Inner barrel lock
Material: Polyamide
Manufacturing: Injection molding
Function: Securing and locking the inner barrel position
Compatibility: RetroArms M249 hop-u..