I have for sale a custom built AR-15 chambered in 5.56/223. It was built using a Bushmaster upper and lower receiver, Strike Industries upper and lower parts, Strike Industores enhanced charging handle, Magpul enhanced bolt realize, Magpul stock, brand new buffer tube, buffer and spring, STINGR USA free float hand guard, Bushnell 2 MOA red dot, mil spec trigger, Sig Sauer grip. Includes soft range bag or hard case. Very nice AR-15 built to last.