Northmark Vault Steel Hex Head Stock Tube Guide Rail Screw Set for TM NGRS M4 (2 Pack)

The Northmark Vault Steel Hex Head Stock Tube Guide Rail Screw Set is designed as a direct replacement for the factory screws securing the guide rail in Tokyo Marui NGRS M4 stock tubes. These screws are slightly longer than the OEM hardware, allowing them to re-engage usable threads in cases where the original screws have stripped the initial thread depth.

Manufactured from hardened steel and featuring a hex (Allen) drive head, these screws offer improved torque control and reduced risk of cam-out compared to the factory Phillips head screws. The hex interface allows more secure installation and helps prevent future stripping during maintenance or stock removal.

This is a functional upgrade and corrective solution for NGRS owners addressing worn or partially stripped stock tube mounting threads.

Specifications

Hardened steel construction
Hex (Allen) drive head
Slightly longer than factory screws for improved thread engagement
Designed for Tokyo Marui NGRS M4 stock tube guide rail
2 screws per pack

Builder Notes

• Intended for TM NGRS M4 platforms

• Designed to re-engage partially worn threads

• Apply medium threadlocker if permanent retention is desired

• Avoid over-torquing to prevent further thread damage