Selling my sig spear lt upper. Chambered in 5.56 barrel length is 11.5. If you need the stock muzzle device i still have it. If you want the stocks i have 2 for sale separately The slimline telescoping mcx stock. And a mcx buffer tube adapter to run ar-15 stocks. What comes with this sale is the complete upper. And the ar-15 lower adapter piece needed to use this upper. 832-875-7700