Just purchased an R 51  - I have an old HK P9S in .45 that looks so much like it I couldn't resist. Did the homework, and thought what the heck - if it turns our Gen 2 has issues, Remington will fix. Only put 14 rounds of Sig ammo through it out the back door, no problems. But it is not a fun pistol to field strip and re-assemble.

Still, time will tell. Sure looks cool though!