reflecting its modularity and versatility. While the standard caliber for this system — the .223 Remington or 5.56mm — is adequate, others are more suitable for some applications. Two of the best calibers on the market for the AR-15 are the 6.8mm SPC and 6.5mm Grendel. ...
TheDaniel Defense DDM4v5 300 Blackoutstarts off with a better trigger than the Rock River Arms, but that’s not saying a whole lot. It’s got a gritty, high-friction take-up, but only requires about 5 ½ pounds of pressure to break. Daniel Defense makes great rifles and the barrels...