Yes. The UTG Pro AR15 6-position Receiver Extension Tube Kit will fit/replace any AR15 buffer tube on an AR15 or rifle that is compatible with AR15 style buffer tubes.
Yes. The UTG Pro AR15 6-position Receiver Extension Tube is a standard Mil-spec buffer tube that will fit all Mil-spec buttstocks like the Magpul MOE.
The UTG Pro AR15 6-position Receiver Extension Tube Kit includes the Buffer tube, buffer spring, carbine buffer, receiver end plate, and castle nut. Only the buffer tube itself will be finished in a Flat Dark Earth Cerakote for Corrosion and Wear Resistance.
This will fit the SBA3 and SBA4 braces.
These will work for AR .308 rifles as well.
This kit includes Mil-spec 6 Position Extension Tube, Carbine Buffer, Buffer Spring, Receiver End Plate, and Castle Nut.