Kak Industry AR-15 A5 Buffer Tube 9 Position

KAK's A5 style buffer tube gives an AR-15 the longer A5 receiver extension with 9 stock positions. It is black hard coat anodized aluminum and uses a standard mil-spec end plate and castle nut.

Read this before you buy: in an AR-15 build the A5 tube works only with A5 style buffers and rifle length AR-15 buffer springs. Do not run a standard carbine buffer in it.