Great side loader. - Mean Arms AR-10 Loader

Unfortunately living in restricted state, the only option for my AR-10 is fixed magazine or bolt action, bolt action defeats the purpose of owning the AR-10, so I gave a chance to Mean Arms AR-10 Loader, bought just one to test. First impressions, well build, sturdy and lightweight. Tested on Aero AR-10 upper with JP BCG, loaded every time without issue and advanced the first cartridge every time after removal of the loader. Really like the idea of using the thumb to advance the cartridges vs side tabs like other brands offer. The cartridges load with ease without any resistance. Tested 50 rounds, no failure to feed and no jams. I would advise to watch a instructional video online to get the idea on how to use it. Purchased second one week later �