We recently integrated four Open-Access Gen-2 Wideband Full-Duplex Radios into the PAWR COSMOS Testbed, allowing for remotely-accessible experimentation. Each Gen-2 FD radio consists of an antenna, a customized Gen-2 RF self-interference (SI) canceller box, and a USRP software-defined radio (SDR). All four Gen-2 FD radios are synchronized via an external clock source and are connectted to a remotely accessible compute node. The RF canceller PCB, shown in Figure 1(a) below, can achieve >50 dB RF SI cancellation across a bandwidth of 20 MHz, as shown in Figure 1(b).