Barrel: Blackstone Arms 6.8 16" Scout Handguard:SLR Rifleworks 11" Solo M-LOK Bolt Carrier: BA Nickel Boron Gas Block:Standard Low-Profile Charging Handle:Mil-Spec Muzzle Device:Standard A2 M-LOK QD Sling Mount Upper was bought complete from Blackstone Arms (https://www.blackstonearms.com/category-s/100.htm) Comes with Vortex Strike Eagle 1-8x 24mm Rifle Scope Also have 240 rounds of Hornady 110 gr BTHP included in price