Shop › ARMASPEC LPK STS 223/556 BLK ARMASPEC LPK STS 223/556 BLK $71.99 Armaspec AR-15 Lower Parts Kit (Less Trigger Group and Grip), Fits AR 5.56/.223, Black Finish, This Is NOT a Complete Lower Parts Kit ARM152-BLK Quantity: Add To Cart Added! Armaspec AR-15 Lower Parts Kit (Less Trigger Group and Grip), Fits AR 5.56/.223, Black Finish, This Is NOT a Complete Lower Parts Kit ARM152-BLK