Whomever has those guns appreciates the AUG, they’re some interesting combinations. Though it seems that the seller slapped a bunch of parts together to sell complete guns instead of parts. Depending on price someone’s getting some cool stuff that they could keep or flip.
The top gun is a parts gun for multiple reasons. The HBAR barrel isn’t original to the gun (or any us marketed AUG), the white stock was made within the last 6 or 7 years, the receiver is either A2 or USR (my money is it being a CCF A2 replacement receiver), and the magazine appears to be one of the very rare clear mags. No idea on the carrier, but it’d say it’s likely an A3+ carrier, USR, or “E” carrier. I’d buy the gun because it has desirable parts, though the current configuration isn’t really popular with typical AUG buyers. It’ll probably sell in the 3k range or much higher. You could flip the barrel alone for 1500+ Depending on condition.
Middle gun is an apparently well worn A1 with what appears to be a closed flash hider and early turrets/fixing screw style. Maybe 905-906 range. Maybe worth 2700.
The bottom gun has a 3rd or 4th gen 9mm kit with compensation cuts on a special receiver with an old STANAG mounted optic (kobra???) and a green A1 stock. The receiver is worth about 3k to a collector. The optic mounting interface generally blows on the SR so that particular optic is mounted too low for comfort. The 9mm kit is neat but not particularly appealing compared to newer gen kits. Realistically that’s a 5k package, but you’d be very very hard pressed to find someone willing to pay for it. It’d sell much faster broken into 3 piles: receiver, stock and hammerpack, and stockless 9mm kit.