SLR = $1000 receiver set
ATRS = $500 lower, and you decide your upper (slick side or FA)
Slick side = $485
Forward assist = $600ish I think?
Better of the 2... I haven’t handled either, but I’m willing to by bet my left nut, ATRS.
Macabee had a ton of problems at the beginning, and were not forthcoming with the information. They actually purposefully led on incorrect timeframes, came up with unacceptable solutions (cerakote vs anodize), etc.
It appears some bugs have been worked out, but some still exist.
ATRS has been fully upfront on any issues they’ve encountered. And admittedly the first batch will have some minor issues with buffer tubes, but a few solutions were offered.
So you would bet your left nut on two pieces of hardware you have even touched or had first hand experience with? Wow I hope you don’t do that with everything in your life because you will eventually have to sit down to pee.