Magpul’s newest product is the Maglink Coupler. It is designed to work only with PMAG 30 and PMAG 30 M3 magazines. At $17.95 it is a little more expensive than I would like (a PMAG 30 sells for $14.95).
I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!