rickyrick,you recall well.
The STG 58 kits came de-milled.
DSA was one option for a receiver Imbel was another.
We needed a certain number of USA parts. A semi-only selector.
There is a cam in the bolt carrier designed to trip full auto when the BCG comes into battery.
I'm not a lawyer or a BATF agent,but it seems wise ,as a "CYA " move, to mill off that cam so its not considered a "full auto BCG"
They are a good gun. Cool and all. Heavy to carry, heavy mags,,mediocre trigger, and not as friendly to optics as the AR-10 clones.
Shooting iron sights on a bench.mine would shoot just over an inch at 100 yds for up to 5 shots,but as it warmed,it walked. The barrel is not free floated and a gas system hangs from it.
Its a cool battle rifle that is good at battle rifle things. Mine is gone and I have a Garand. Its cool,too.
Its easy to get very good accuracy,an excellent trigger,and superb optics mounting at lower price with the AR-10 clones.
For myself,its an easy choice.
Another practical ,good choice is an M1A. I call then "The Harley of Rifles"
You'll never convince a "True Believer" to go AR-10 over M1A. Thats like going Japanese Motorcycle! Don't even try. SR420 will get out his fully Tapco Equipt
Hawg and show you. Oil puddle and all! (I smiled when I said it,420!)