A whole section is devoted to accuracy. There are lots of free/cheap things you can do, such as properly retorque the gas block (free), add practically any muzzle break (cheap), or get a trigger job (cheap). I retorqued my gas block and had a trigger job done, which helped a lot. I'm foregoing any other mods until after I install an Accu-Strut, which should be availabe soon. One of the Perfect Union's regular members (kkina) developed it, and it looks very promising. If I get good enough results, I won't need to buy anything more, for my purposes.