Aero/bcm ar15 specs are as follows. 13.7 inch Aero lower receiver triggertech 3.5lb flat trigger/drop in. bcm upper and bcm handguard ba hanson profile barrel solgw nox 556 brake. Radian ambi charging handle Has a vortex strike eagle 1-8 and vortex mount. $800cash only cash at this time. Text me at 346four46two102 for fastest