If I may add some input, I fired an SU16-C yesterday. It felt solid to me. The foregrip was solid. The folding stock was solid. The sights were good. At 100 yards, it grouped as well as the MAK-90 I shot. And I shot the SU standing, just because it felt good. Nice and light. I didn't need, or want, a bench. It makes a great plinker. Very much a pleasure to shoot. We did have some problems with FTF and FTE. It could have been the PMC ammo, or the factory mags. Maybe the break-in blues. We will take it back with different ammo and see if the problem continues.