what barrel length? Stainless or Phosphate?
Either way, its a good buy. The Armalite AR10b Gen II mags are pretty fucking awesome, they just dont look pretty. And are heavy. Might have some sharp corners. Boohoo. They work, and work damn good. Ive had more failures with Magpul PMags than I have with Armalite Gen II mags. Ive put alot more rounds through the Gen II mags as well.
Ive opted for the Lancer mags in my AR10A rifle. No failures yet, the pmag failures were due to long ammo. So, not really the mag's fault. But the Gen II mags eat pretty much everything except the longest of bullets. BUT, even then, those longer bullets are stil more likely to feed better in the straight wall design Armalite has.
Anyways, they good mags. I always liked the fact you can use M1A mags in them as well, either cutting a mag catch hole, or holding them in using the weird sling method, or whatever works for you. Even resting the mag isnt so bad on the AR10B because it has mag stops in the upper. Which Help.
Thats not a bad price at all. Ditch the rail, some people still like Troy, Armalite has pretty good options for cheap, except their quad rails. Those are more expensive, but not too bad. I have the Tac15, and I really like it. PRetty decent mounting method, wish it was Mlok, but whatever. Thats just an aesthetics complaint.
Youll be happy with it.