The SAR-1 is actually a great AK for the price. Mine is dead-on accurate right out of the box. You can add a K-Var black polymer stock set and you'll be tickled pink. The SAR-1 is close enough for Soviet government work to a real AKM. The receiver is made exactly how an AKM receiver is made, complete with the "dimples" over the mag well. Century boofed the replacement fire control group on the SARs, but you can fix that with a Red Star Arms trigger group. Mine had some trigger slap that has disappeared before I sent away for the Red Star trigger group, so I'm holding off now and going to get a K-Var stock set. Those, by the way, come in black, olive drab, and plum. Why plum? Some Warsaw Pact AKs used plastic stocks that were plum colored and some folks want that effect. My SAR has blasted thousands of rounds and never a malfunction yet. By the way, the K-Var stock set adds 1 1/4" pull to the buttstock which is nice. It still retains the trap in the butt for the cleaning kit. And the butt sling swivel is on the side where it belongs. And the foregrip has a eat shield.
And if you're into bump-firing, the SAR bumps so fast it sounds like a full-auto. Did this once at the pits and people there thought it was a selective-fire full-on AK. It wastes ammo, so I only did this a couple times, but everyone has to do it once to get it out of their system.