You can get a collapsible stock, pistol grip, use 30 rds mags and be 922r compliant, without any gunsmithing too. The modified Tapco stock/pistol grip combo from saigastock.com is about $100 and seems to work pretty well. As long as you only use US-made mags, such as Surefire, you will be 922r compliant. The stock is one part and each mag counts as 3 parts, replacing 4 Russian parts and leaving 10, giving full compliancy. The only tool needed for the install is a Phillips screwdriver.