Amazon.com: Adapters(16mm) and 1 Piece HD Conversion RAF NATO Nylon Watch band Strap Kit For Casio GShock MIL-SHOCK 5600 GWM5610 DW6600 GW6900 2310 G100 (Red) : Clothing, Shoes & Jewelry
BTT Adapter for G-Shock, Black - Best Tech Tool (BTT)
Amazon.com: Vario Compatible with Casio G-Shock Watch Band Adapters (16mm) and Spring Bar with Tool : Clothing, Shoes & Jewelry
Amazon.com: [Richie Strap] 22mm Nylon Watch Band Strap Metal Adapters Kit for GA2100 Casio GShock GA-2100 (Black) : Clothing, Shoes & Jewelry
Amazon.com: Vario Compatible with Casio G-Shock Military Dive Ballistic Nylon Coal Black Premium Replacement Watch Band with Adapters and Spring Bar Tool : Clothing, Shoes & Jewelry
Leatherman Tread Watch Adapter for Casio G-Shock | ChronoLinks
Tutorial: How To Install G Shock Adapter (For 2pc strap) - YouTube