Running wires and/or pressure switches for electronic accessories mounted to Picatinny rails often leads to unruly, damage-prone installations.
Manta rails, manufactured in the United States of a soft military-grade polymer, solve such problems with molded-in channels and compartments that orient and protect vulnerable wires and switch pads while still allowing easy activation of the latter.
Various styles are available for specific applications in kit form, and kits come with lubricant to ease the insertion of wires, pressure pads or optional stiffening rods. The company also makes polymer sleeves designed to fit vertical foregrips. Price: $10-$70.