Midwest Industries‘ SSK KeyMod rails are already very light weight. Their newly released Lightweight KeyMod Handguard manages to shed even more weight by replacing the continuous top rail with KeyMod slots. The 12″ rail weighs only 8.1 ounces with the barrel nut!
Like the SSK rails, this one features 5 QD sling swivel slots. It uses the same proprietary barrel nut as the SS and SSK handguards. The top rail features a short section of 1913 rail on the front and rear portions of the rail with KeyMod slots between.
These will be available in 3-4 weeks.
Genius. Most of top of the rail is unused space.