Canon 5D Mark III, 5DSR and 5DS (All of these Crop Sensor DSLR bodies are identical, so a plate for a 5D Mark III will also fit the 5DSR and 5DS)

ProMediaGear offers solid and quality bracket plates for your Canon 5D Mark III, 5DSR and 5DS cameras. 
PCBGE11 bracket plates is designed to fit your Canon 5Ds, 5DSR, 5DS camera 3 Body with BG-E14 Battery Grip and PBCBGE11 for BG-E11 Battery Grip.
For the non-Grip Canon 5Ds, 5DSR, 5DS, we have the PBC5D3 bracket plate. All bottom plates are custom designed as  it fits like a glove perfectly matching the camera body & the battery pack shape.
For the complete set of L-bracket, we have our universal 3 inch plate PLX3x which is Designed for DSLRs & Mirrorless Cameras without Grip including the Canon 5D Mark III, 5DSR and 5DS cameras. 
These bracket plates have hard black anodized surface coating with wear resistant finish and has been machined from solid Aluminum T6061 block. It also features 1/4-20 thread for mounting other quick release plates/accessories and safety stops to ensure plates don’t slip out if clamp is loosened  accidentally. 
The accessories are 100% made, designed and assembled in the USA