这是rifle还是pistol？求大佬们指点

JarryC

Once a rifle, forever a rifle. 只要lower registered 成 rifle 了，就算有pistol brace 也算rifle.

回答你的问题：
rifle upper + rifle lower + pistol brace = Rifle
pistol upper + rifle lower + pistol brace = SBR

除此以外
pistol upper + pistol lower + stock = SBR
rifle upper + pistol lower +  pistol brace = firearm