Not the short ones but the dang blasted long ones.
With simple tools and a hammer they can be formed pretty close to look passable.
I start the process my gently tapping with a hammer. This starts the flattening and forming and compresses any space that may be in the trunion.
Then my buddy showed me to start "gently" tapping the edges of the rivet too give it a downward edge.
I got these tools from AGI gunsmithing. But anyone could make there own with an old ratchet handle.
Any slight deformations can be fixed with a light sanding of the rivet.
There are tools out there made specifically for the long rivets.
But for the average home builder on a budget this gets you pretty close once finished.
Make a cup for the bottom rivet to sit in so as not to deform it.
I have the AK-Builder tool. But you can just make a cup out of a piece of metal stock.
Is it a perfect rivet that would pass inspection at the factory. Well no.
But done slowly and with patience and once the rifle is finished. It will get you close enough.