Spartacus,
Sorry to burst yer bubble, but the Uzi isn't mean for tack-driving
. Mine shoots to point-of-aim, and that's good enough for me. Although, I'm getting damn tired of the rear peep sight...
About the only way I can think of to accurize it would be to reduce the bolt/receiver clearance by squeezing the sides in a BAV (big-ass vise), or by shimming between the bolt and receiver. Of course, that would kill its reliability, which is the Uzi's strength.
I practice with TQ-19 silhouettes at 50 feet, trying to put 2 32-rounders and 2 25-rounders into the torso in semi-auto rapid fire. Half are from the shoulder, half are from the hip. You gotta remember that the 9mm is meant for CQB, not sniping. Ergo, one-big-hole accuracy isn't a real concern for me, as long as I'm not hitting the target in the next lane over.
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"Taking a long view of history, we may say that
anyone who lays down his arms deserves whatever he gets."
--Jeff Cooper