PWS is pretty effective but directs a LOT of blast back to ya.
I run a Tapco slotted brake on my WASR 10, it's cheap, light, and it does help at keeping muzzle rise down without venting back.
Tried it on my Draco pistol but the fireballs that came out were turned into a 'fan' of fire venting up which was much more noticeable from shooter's perspective.
Eventually dropped the Draco slant brake for a muzzle nut, Draco w/brace just fits in my small range bag with no device and I didn't notice any difference between the two. As much as I laugh at fake supressors I picked up an el cheapo mini fake spetsnaz suppressor that does a great job at killing flash and directing blast away from me. But it's sitting in a drawer right now, adding a 6" device to a pistol on a full sized AK receiver kinda defeats the purpose, unless you just want something that's still legally defined as a pistol.