Lwrc DI. A bit more. But outstanding quality. OP did ask for "best" MD legal ar. Hell I got a noveske rogue hunter at Duffy's C&C.[/QUO
LWRC but I like piston vs DI
or
Engage.
Can't go wrong with either one. Have had both with zero issues after thousands of rounds through them. There are others I'm sure but I've used both of these in AR class in all kinds of weather conditions and like I said before. Zero problems.
do you have the LWRC DI ? (I seen your comment of piston vs DI after the LWRC) so wasn't sure