KEWL! The side blast must be fearsome.
Yeah the text relates that Barrett had to add 2 additional recoil springs to the existing 2 on the front upper. On my 82A1 the small wedge that secures the recoil springs is plastic. I wonder if he has to make that small piece from metal now with the additional springs and recoil that they soak up ?
http://www.smallarmsreview.com/pdf/payload.pdf Indeed the brake on that pig will educate ya quick if ya don't spot from behind the shooter vs beside him......or her :o)
Stay Safe !