Q TOPRAIL-FIX-1913-20IN The FIX 1913 20" Top RailThe Q LLC. FIX 1913 20" Top Rail TOPRAIL-FIX-1913-20IN is designed for The FIX by Q. This QTOPRAIL-FIX-1913-20IN M1913 Top Rail offers compatibility with various accessories including optics and night vision devices providing users with a versatile platform to customize their firearm. With a length of 20 inches this top rail allows for ample space to attach and configure accessories for enhanced functionality and adaptability on The FIX rifle by Q.The M1913 Top Rail designed for The Fix by Q provide compatibility with various accessories including optics night vision devices and other enhancements. This rail system allows users to easily attach and customize their firearm with additional accessories to meet specific needs and preferences. Designed for versatility it enhances the functionality of The Fix by Q by providing a platform for adding a range of accessories for improved performance and adaptability.