Got a 20" .450 upper...it is incredibly accurate and reliable and relatively cheap to shoot...My brother and 2 of his buddies had SOCOMS..two of them have sold them..The SOCOMS are just not reliable..(Flame on)...When you buy a $1,200 SOCOM and RR says to grind on the magazine to make it work..that is BS...The ..450 is a great deer hunting round...IF you want to shoot 600 grain slugs thru car doors buy a SOCOM and rock on.