Ruger 90461 Elite 452 MSR Trigger Fits AR-556/SR-556/SR-762, Two Stage, 4.5 lbs. Draw Weight, Black & Silver $119.69
Radian Weapons R0012 Raptor SD Ambi Charging Handle, Black, Gas Ported Shaft, Fits Mil-Spec AR-10/SR-25 Platform $149.95