Chamberings: 17 HMR, 22 ARC, 5.56 NATO, 223 Wylde, 224 Valkyrie, 6 ARC, 6.5 Grendel, 6.5 Grendel Type II, 6.8 SPC II , 300 Blackout, 7.62x39, 338 ARC, 350 Legend, 400 Legend, .410 Shotgun, 450 Bushmaster, 458 SOCOM, 12.7x42. Barrels are 4150 CMV or 416R stainless steel, include fluted and unfluted, parkerized, black nitride finishes. Bolts are 9310-grade steel. Receivers are 7075-T6 aluminum forgings. No magazines with many models.