Nikon PK-13 27.5mm AI Extension Tube 2653 B&H Photo Video
Amazon.com: FOTGA Lens Mount Adapter for Ricoh/Pentax/Phoenix/Vivitar PK-Mount Lens to Nikon 1 J1 J2 J3 V1 V2 V3 DSLR Mirrorless Cameras : Electronics
Lens Adapter - Pentax K Mount Lenses to Nikon 1-Series Cameras – Fotodiox, Inc. USA
K&F Concept Adapter Pentax K to Nikon Z PK-Nikon Z | JO GEIER - MINT & RARE
Vello Pentax K Lens to Nikon F-Mount Camera Lens Adapter
K&F CONCEPT Lens Mount Adapter for Pentax K Mount PK Lens to Nikon 1-Series Camera Adapter Ring PK-Nikon 1 PK to Nikon Adapter - AliExpress
Nikon PK-13 Auto Extension Tube Ring – Camera Exchange
Pentax (PK/DA) Lens to Nikon Z Series Mount Camera High Precision Lens Adapter, PK/DA-NIK Z - KENTFAITH
Nikon PK-11A Extension Tube 2656 B&H Photo Video
Amazon.com : Fotga PK-Nikon Z Lens Mount Adapter Converter for Pentax PK K Mount Lens to Nikon Z Mount Z5 Z6 Z7 II Z6II Z7II Z9 Z50 Mirrorless DSLR Camera : Electronics
Nikon PK-13 – 55mm.nl
through the Nikon F-Mount - Nikon teleconverters and automatic tubes
K&F Concept M11221 Nikon F Lenses to Pentax K Lens Mount Adapter with Optic Glass - KENTFAITH
Nikon Extension Tube PK-12 14mm | JO GEIER - MINT & RARE
PK-11A Auto Extension Tube AI (8mm) | Nikon
Amazon.com : Nikon Pk-13 Auto Extension Ring : Camera Lens Extension Tubes : Electronics
Nikon PK-3 Auto Extension Ring 27.5mm (Non AI) at KEH Camera
PK-NIKON
PK-11A at Acephoto.net
Nikon PK-13 Auto Extension Ring 27.5mm For Nikon AI Series Lenses