The NiSi Cap is a precision-engineered replacement lens cap designed specifically for the Ricoh GR IV, offering a flawless fit and seamless compatibility. Please note, it is not compatible with GR III or GR IIIx models. The cap works with both NiSi and standard GN‑3 rings, as well as the NiSi 49mm Filter Adapter (sold separately), allowing you to protect your lens while keeping many filters mounted. Extra-thick filters over ~3.5mm and double-ring filters, such as Variable NDs or CPLs, may not be supported. Crafted from high-quality materials with a precision spray-coated finish, the cap matches the GR IV's body for an integrated, OEM-like appearance. Imported damping fabric on contact surfaces prevents scratches and eliminates harsh metal-to-metal noise, while the stepped edge design provides improved grip for quick, secure attachment and removal. A subtle, unpainted “GR” logo keeps the design minimalist and professional, delivering reliable protection without compromising the camera's sleek aesthetic.